Measured
Your result
No broken links found in this sample.
- Link health
- 100.00/100
- Quality checklist
- 88.92/100
- Broken links
- 0
Healthy links in the sample
Scored technical checks
Confirmed in sample
11 links verified · 189 unknown · 20 selected source pages · 6% of selected destinations verified. Sample only. Unknown links are not counted as broken.
What to fix first
View all priorities →Includes issues from the extended diagnostic report.
- Structured data syntax
Provide JSON-LD with @context and @type (or a typed @graph). Match the markup to the visible content; syntax alone does not validate its meaning. Reference: schema.org and Google structured data guidelines.
- Open Graph type
Declare og:type, such as website or article.
- HSTS declared
Send Strict-Transport-Security on HTTPS responses with max-age of at least 15552000 seconds (180 days); OWASP recommends one year and includeSubDomains. Reference: OWASP HTTP Strict Transport Security cheat sheet, MDN.
Fix with your coding assistant
Copy a ready-to-use prompt with the issues and affected URLs.
Your path to S-Tier
Not yet S-TierHealthy links, every scored requirement passed, and complete evidence in the selected sample.
- Pass all scored quality requirements across the five categories.
- Verify every required check and selected destination; incomplete or retained evidence cannot unlock the badge.
How this result qualifies
Verified internal navigation
At least 10 internal destinations were verified. Unknown items do not disqualify the site; confirmed checklist failures reduce quality.
100.00/100 link health · 88.92/100 quality · 11 internal destinations
New comparison baseline. A change in coverage is not a verified improvement.
The diagnostic report below may cover additional pages and external links. Only the stored competitive sample determines the ranking. At least 10 verified internal links are required; unavailable checklist items do not exclude a site. How scoring works
Explore issues & evidenceIssues & evidenceConfirmed issues, suggested fixes and the evidence behind them.
Broken links & sources
Latest competitive sample and evidence · 88.92/100 quality
At least 10 internal destinations were verified. Unknown items do not disqualify the site; confirmed checklist failures reduce quality. The available outcomes agreed between passes.
20 selected source URLs · 200 internal destinations. 11 evaluated · 189 unknown · 0 using previous evidence. The expanded diagnostic report follows below.
Some checklist evidence is unavailable: Page title, Distinct page titles, Meta description, Self-referencing canonical, Main heading, Heading hierarchy, Main landmark, Mobile viewport, Image dimensions declared, Structured data syntax, Document language, Image alternatives declared, Form controls named, Buttons named, Links named, Descriptive link text, Open Graph title, Open Graph description, Open Graph type, Open Graph URL, Open Graph image URL, Open Graph image description, Social card type, HTTPS page, No insecure embedded resources, Homepage favicon available, Homepage sharing image available, Root sitemap available. 0 check(s) use previous evidence, for at most eight days from their last reliable reading. Other unknown observations have no scoring vote.
- SEO
- 95.83/100
- Accessibility
- 100.00/100
- Structure
- 80.56/100
- Sharing
- 85.71/100
- Security
- 75.00/100
Selected pages
- https://www.london.gov.uk/
- https://www.london.gov.uk/city-hall-blog
- https://www.london.gov.uk/contact-or-visit-city-hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
- https://www.london.gov.uk/events
- https://www.london.gov.uk/events/77-memorial-service-2026
- https://www.london.gov.uk/events/bmw-classics-2026
- https://www.london.gov.uk/events/chanukah-square-2025
- https://www.london.gov.uk/events/city-hall-open-house-2026
- https://www.london.gov.uk/events/diwali-square-2025
- https://www.london.gov.uk/events/diwali-square-2026
- https://www.london.gov.uk/events/draft-london-plan-consultation-accessible-online-event-22-july-2026
- https://www.london.gov.uk/events/draft-london-plan-consultation-accessible-online-event-24-september-2026
- https://www.london.gov.uk/events/draft-london-plan-consultation-person-event-22-september-2026
- https://www.london.gov.uk/events/holocaust-memorial-day-2026-ceremony
- https://www.london.gov.uk/events/holocaust-memorial-day-ceremony-2025
- https://www.london.gov.uk/events/london-data-week-2026
- https://www.london.gov.uk/events/london-new-years-eve-2025
- https://www.london.gov.uk/events/mayors-christmas-carol-service-2025
Internal link verdicts and weights
- ok · weight 6 · https://apps.london.gov.uk/schools/
- ok · weight 6 · https://www.london.gov.uk/
- ok · weight 6 · https://www.london.gov.uk/city-hall-blog
- ok · weight 6 · https://www.london.gov.uk/contact-or-visit-city-hall
- ok · weight 6 · https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
- ok · weight 6 · https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
- ok · weight 6 · https://www.london.gov.uk/events
- unverifiable · weight 6 · https://www.london.gov.uk/events/77-memorial-service-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/bmw-classics-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/chanukah-square-2025
- ok · weight 6 · https://www.london.gov.uk/events/city-hall-open-house-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/diwali-square-2025
- unverifiable · weight 6 · https://www.london.gov.uk/events/diwali-square-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/draft-london-plan-consultation-accessible-online-event-22-july-2026
- ok · weight 6 · https://www.london.gov.uk/events/draft-london-plan-consultation-accessible-online-event-24-september-2026
- ok · weight 6 · https://www.london.gov.uk/events/draft-london-plan-consultation-person-event-22-september-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/holocaust-memorial-day-2026-ceremony
- unverifiable · weight 6 · https://www.london.gov.uk/events/holocaust-memorial-day-ceremony-2025
- unverifiable · weight 6 · https://www.london.gov.uk/events/london-data-week-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/london-new-years-eve-2025
- unverifiable · weight 6 · https://www.london.gov.uk/events/mayors-christmas-carol-service-2025
- unverifiable · weight 6 · https://www.london.gov.uk/events/peoples-question-time-2026-greenwich
- unverifiable · weight 6 · https://www.london.gov.uk/events/peoples-question-time-admissions-policy
- unverifiable · weight 6 · https://www.london.gov.uk/events/pride-parade-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/remembrance-service-2025
- unverifiable · weight 6 · https://www.london.gov.uk/events/remembrance-service-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/state-london-debate-2022
- unverifiable · weight 6 · https://www.london.gov.uk/events/state-london-debate-2026
- unverifiable · weight 6 · https://www.london.gov.uk/events/unesco-day-remembering-transatlantic-slave-trade-and-its-abolition-2026
- unverifiable · weight 6 · https://www.london.gov.uk/find-job-city-hall
- unverifiable · weight 6 · https://www.london.gov.uk/freedom-information-0
- unverifiable · weight 6 · https://www.london.gov.uk/google-translate-disclaimer
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/antelope-unveiled-fourth-plinth-trafalgar-square
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/just-stop-oil-protest-injunction-order-18
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/london-climate-action-week-continues-mayor-launches-new-ps500m-fund-support-net-zero-2030
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/londons-new-years-eve-celebrations-return-banks-thames
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-announces-capitals-diwali-square-celebrations
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-announces-new-funding-youth-workers-embedded-hospitals
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-announces-new-investment-and-taskforce-help-london-hit-2030-net-zero-goal
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-announces-return-summer-streets-fund-ps400000-boost-capitals-hospitality-sector
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-announces-second-round-funding-rewild-london
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-appoints-industry-experts-ensure-london-markets-flourish
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-celebrates-first-adult-learning-awards-winners
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-london-response-chancellor-exchequers-statement
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-london-statement-following-disorder-protest
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-london-warns-rough-sleeping-crisis-cost-living-pressures-bite
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-reveals-economic-impact-julys-heatwave
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-statement-interim-report-baroness-louise-casey
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/mayor-urges-londoners-take-their-covid-and-flu-vaccines
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/nearly-twice-many-londoners-support-expansion-ulez
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/nurtureuk-and-tender-deliver-new-inclusive-education-programme
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/pioneering-london-leads-way-mayor-invests-new-ps810000-boost-mental-health-support-schools
- unverifiable · weight 6 · https://www.london.gov.uk/media-centre/mayors-press-releases/pride-london-awarded-funding-deliver-londons-pride-celebrations
- unverifiable · weight 6 · https://www.london.gov.uk/node/1291995
- unverifiable · weight 6 · https://www.london.gov.uk/priorities-london
- unverifiable · weight 6 · https://www.london.gov.uk/privacy-policies
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/accessibility
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/creative-health-and-wellbeing
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/current-culture-projects
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/diversity-public-realm
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/lets-do-london
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/liberty-festival
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/london-strategic-licensing
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/make-a-date
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/mayors-cultural-vision
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/space-culture
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/arts-and-culture/supporting-london-night
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure/data-and-innovation-tools
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure/diversity-and-inclusion
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure/infrastructure-coordination
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure/infrastructure-policy
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure/panels-and-groups
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/better-infrastructure/reports-toolkits-and-best-practice-guides
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/business-and-economy
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/business-and-economy/business-and-economy-publications
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/business-and-economy/mayors-priorities-londons-economy-and-business
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/business-and-economy/strategic-economic-development-reports
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/business-and-economy/support-your-business
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/civil-society
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/employment-rights-hub
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/get-help-cost-living
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/help-cost-living
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/londons-violence-reduction-unit-vru
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/mayors-strategy-equality-diversity-and-inclusion
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/migrants-and-refugees
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/communities-and-social-justice/older-people
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/healthy-early-years-london-and-healthy-schools-london
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/improving-standards-schools-and-teaching
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/london-careers-and-preparing-workplace
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/london-education-report
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/mayors-investment-youth-clubs
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/support-families-and-early-years
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/education-and-youth/young-londoners
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/2024-energy-monitoring-report
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/air-quality
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/climate-change
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/london-schools-climate-kick-start
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/net-zero-energy
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/parks-green-spaces-and-biodiversity
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/publications
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/environment-and-climate-change/waste-and-recycling
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/fire-and-city-resilience
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/fire-and-city-resilience/counter-terrorism-preparedness-network
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/fire-and-city-resilience/london-resilience-forum
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/fire-and-city-resilience/london-resilience-partnership
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/health-and-wellbeing
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/health-and-wellbeing/gla-group-public-health-unit
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/health-and-wellbeing/health-inequalities
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/health-and-wellbeing/working-londons-health-and-care-partners
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/buying-and-owning-home
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/council-and-social-housing
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/funding-programmes
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/housing-and-land-funding-guidance-and-resources
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/land-and-development
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/mayors-priorities-londons-housing-and-land
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/renting-home
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/housing-and-land/southall-cpo
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/aim-webinar-series
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/connect-work-programme
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/get-britain-working-trailblazers-london
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/jobs-and-skills-governance-and-partners
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/learner-stories
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/london-careers-hubs-information-employers-and-education-providers
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/londoners-seeking-employability-skills
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/next-steps-london
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/research-and-strategy
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/jobs-and-skills/skills-bootcamps-londoners
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/about-mopac
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/mopac-evidence-insight
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/mopac-funded-services
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/mopac-governance-and-decision-making
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/mopac-guidance-and-resources
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/mopac-news-and-publications
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/my-area
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime-mopac/tough-crime-safer-city
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/mayors-office-policing-and-crime/about-mayors-office-policing-and-crime-mopac/contact-mopac
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/atlas-ldn-new-service
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/digital-planning
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/implementing-london-plan
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/london-plan
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/planning-applications-and-decisions
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/planning-london-programme
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/statutory-notification-planning-policy-consultation
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/planning/who-we-work
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/research-and-analysis
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/research-and-analysis/economy
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/research-and-analysis/people-and-communities
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/research-and-analysis/webmaps-and-data-services
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/search-funding
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-places/about-team
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-places/places-work
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-spaces
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-spaces/advice-and-guidance
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-spaces/high-streets
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-spaces/regeneration-funding-opportunities
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-spaces/regeneration-projects
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/shaping-local-spaces/what-weve-funded-so-far
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/sport
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/sport/major-sports-events-london
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/sport/mayors-london-basketball-taskforce
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/sport/sport-all-us-strategy
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/sport/sport-unites-programme
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/transport
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/transport/cycling-and-walking
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/transport/healthy-streets
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/transport/improving-londons-roads
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/transport/rail-and-underground
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering/contact-team-london
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering/get-inspired-volunteer
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering/get-involved-volunteering
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering/resources-organisations-social-enterprises-and-charities
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering/volunteer-ittf-world-team-table-tennis-championships-london-2026
- unverifiable · weight 6 · https://www.london.gov.uk/programmes-strategies/volunteering/what-team-london
- unverifiable · weight 6 · https://www.london.gov.uk/rss-feeds
- unverifiable · weight 6 · https://www.london.gov.uk/search?query=Cost%20of%20living
- unverifiable · weight 6 · https://www.london.gov.uk/search?query=Homelessness
- unverifiable · weight 6 · https://www.london.gov.uk/search?query=London%20living%20rent
- unverifiable · weight 6 · https://www.london.gov.uk/take-part
- unverifiable · weight 6 · https://www.london.gov.uk/take-part/city-hall-education-sessions
- unverifiable · weight 6 · https://www.london.gov.uk/take-part/our-social-media-and-newsletters
- unverifiable · weight 6 · https://www.london.gov.uk/take-part/past-events
- unverifiable · weight 6 · https://www.london.gov.uk/take-part/working-city-hall
- unverifiable · weight 6 · https://www.london.gov.uk/take-part/working-city-hall/guaranteed-interview-scheme
- unverifiable · weight 6 · https://www.london.gov.uk/talk-london/
- unverifiable · weight 6 · https://www.london.gov.uk/terms-and-conditions
- ok · weight 6 · https://www.london.gov.uk/who-we-are
- unverifiable · weight 6 · https://www.london.gov.uk/who-we-are/city-hall-blog
- unverifiable · weight 6 · https://www.london.gov.uk/who-we-are/city-hall-blog/balham-library-dementia-friendly-space
Scoring checks
- Page title: passed · 6/6 applicable observations
https://www.london.gov.uk/: Home page - London City Hall
https://www.london.gov.uk/city-hall-blog: City Hall blog | London City Hall
https://www.london.gov.uk/contact-or-visit-city-hall: Contact or visit City Hall | London City Hall
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: Contact City Hall or the Mayor | London City Hall
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: Visiting Trafalgar Square | London City Hall
- Distinct page titles: passed · 6/6 applicable observations
https://www.london.gov.uk/: Home page - London City Hall
https://www.london.gov.uk/city-hall-blog: City Hall blog | London City Hall
https://www.london.gov.uk/contact-or-visit-city-hall: Contact or visit City Hall | London City Hall
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: Contact City Hall or the Mayor | London City Hall
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: Visiting Trafalgar Square | London City Hall
- Meta description: passed · 6/6 applicable observations
https://www.london.gov.uk/: Official website of Mayor of London, Sadiq Khan, and the 25 London Assembly Members. Policy, news, jobs, contacts.
https://www.london.gov.uk/city-hall-blog: Get the inside track on our work, read stories from guest bloggers and much more.
https://www.london.gov.uk/contact-or-visit-city-hall: Find out how to get in touch with us and how to visit our buildings and squares.
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: How to get in touch with City Hall and the Mayor.
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: How to get to Trafalgar Square and what facilities are available there.
- Self-referencing canonical: failed · 5/6 applicable observations
https://www.london.gov.uk/: https://www.london.gov.uk/home-page-london-city-hall
https://www.london.gov.uk/city-hall-blog: https://www.london.gov.uk/who-we-are/city-hall-blog
https://www.london.gov.uk/contact-or-visit-city-hall: https://www.london.gov.uk/contact-or-visit-city-hall
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
- Main heading: passed · 6/6 applicable observations
https://www.london.gov.uk/: 1 H1 element(s)
https://www.london.gov.uk/city-hall-blog: 1 H1 element(s)
https://www.london.gov.uk/contact-or-visit-city-hall: 1 H1 element(s)
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 1 H1 element(s)
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 1 H1 element(s)
- Heading hierarchy: failed · 5/6 applicable observations
https://www.london.gov.uk/: 1 skipped heading level(s)
https://www.london.gov.uk/city-hall-blog: 0 skipped heading level(s)
https://www.london.gov.uk/contact-or-visit-city-hall: 0 skipped heading level(s)
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 skipped heading level(s)
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 skipped heading level(s)
- Main landmark: passed · 6/6 applicable observations
https://www.london.gov.uk/: 1 main landmarks
https://www.london.gov.uk/city-hall-blog: 1 main landmarks
https://www.london.gov.uk/contact-or-visit-city-hall: 1 main landmarks
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 1 main landmarks
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 1 main landmarks
- Mobile viewport: passed · 6/6 applicable observations
https://www.london.gov.uk/: width=device-width, initial-scale=1, viewport-fit=cover
https://www.london.gov.uk/city-hall-blog: width=device-width, initial-scale=1, viewport-fit=cover
https://www.london.gov.uk/contact-or-visit-city-hall: width=device-width, initial-scale=1, viewport-fit=cover
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: width=device-width, initial-scale=1, viewport-fit=cover
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: width=device-width, initial-scale=1, viewport-fit=cover
- Image dimensions declared: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 of 16 images lack width/height attributes or an aspect-ratio style
https://www.london.gov.uk/city-hall-blog: 0 of 32 images lack width/height attributes or an aspect-ratio style
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 10 images lack width/height attributes or an aspect-ratio style
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 2 images lack width/height attributes or an aspect-ratio style
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 3 images lack width/height attributes or an aspect-ratio style
- Structured data syntax: failed · 0/6 applicable observations
https://www.london.gov.uk/: 0 of 0 blocks have valid JSON-LD structure
https://www.london.gov.uk/city-hall-blog: 0 of 0 blocks have valid JSON-LD structure
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 0 blocks have valid JSON-LD structure
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 0 blocks have valid JSON-LD structure
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 0 blocks have valid JSON-LD structure
- Document language: passed · 6/6 applicable observations
https://www.london.gov.uk/: en-gb
https://www.london.gov.uk/city-hall-blog: en-gb
https://www.london.gov.uk/contact-or-visit-city-hall: en-gb
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: en-gb
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: en-gb
- Image alternatives declared: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 of 16 images lack an alt attribute
https://www.london.gov.uk/city-hall-blog: 0 of 32 images lack an alt attribute
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 10 images lack an alt attribute
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 2 images lack an alt attribute
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 3 images lack an alt attribute
- Form controls named: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 of 6 controls have no HTML label
https://www.london.gov.uk/city-hall-blog: 0 of 1 controls have no HTML label
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 1 controls have no HTML label
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 1 controls have no HTML label
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 1 controls have no HTML label
- Buttons named: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 of 68 buttons have no HTML name
https://www.london.gov.uk/city-hall-blog: 0 of 68 buttons have no HTML name
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 65 buttons have no HTML name
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 65 buttons have no HTML name
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 68 buttons have no HTML name
- Links named: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 of 264 links have no HTML name
https://www.london.gov.uk/city-hall-blog: 0 of 327 links have no HTML name
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 259 links have no HTML name
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 280 links have no HTML name
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 258 links have no HTML name
- Descriptive link text: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 of 264 links use generic text
https://www.london.gov.uk/city-hall-blog: 0 of 327 links use generic text
https://www.london.gov.uk/contact-or-visit-city-hall: 0 of 259 links use generic text
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 of 280 links use generic text
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 of 258 links use generic text
- Open Graph title: passed · 6/6 applicable observations
https://www.london.gov.uk/: Home page - London City Hall
https://www.london.gov.uk/city-hall-blog: City Hall blog
https://www.london.gov.uk/contact-or-visit-city-hall: Contact or visit City Hall
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: Contact City Hall or the Mayor
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: Visiting Trafalgar Square
- Open Graph description: passed · 6/6 applicable observations
https://www.london.gov.uk/: Official website of Mayor of London, Sadiq Khan, and the 25 London Assembly Members. Policy, news, jobs, contacts.
https://www.london.gov.uk/city-hall-blog: Get the inside track on our work, read stories from guest bloggers and much more.
https://www.london.gov.uk/contact-or-visit-city-hall: Find out how to get in touch with us and how to visit our buildings and squares.
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: How to get in touch with City Hall and the Mayor.
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: How to get to Trafalgar Square and what facilities are available there.
- Open Graph type: failed · 0/6 applicable observations
https://www.london.gov.uk/: No og:type
https://www.london.gov.uk/city-hall-blog: No og:type
https://www.london.gov.uk/contact-or-visit-city-hall: No og:type
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: No og:type
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: No og:type
- Open Graph URL: passed · 6/6 applicable observations
https://www.london.gov.uk/: https://www.london.gov.uk/home-page-london-city-hall
https://www.london.gov.uk/city-hall-blog: https://www.london.gov.uk/who-we-are/city-hall-blog
https://www.london.gov.uk/contact-or-visit-city-hall: https://www.london.gov.uk/contact-or-visit-city-hall
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
- Open Graph image URL: passed · 6/6 applicable observations
https://www.london.gov.uk/: https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2025-07/Loved%20and%20Wanted%20campaign%20mural_1.jpg.webp?itok=i3Eee27z
https://www.london.gov.uk/city-hall-blog: https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2021-12/London%20skyline%20at%20dusk_496x496_VRU_2Dec21.png.webp?itok=V72qwHvU
https://www.london.gov.uk/contact-or-visit-city-hall: https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2022-03/Large_Web_Image-Crystal-building-Front-on-darker.jpg.webp?itok=8OGle0vm
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2021-12/Large_Web_Image-The-Crystal-and-surrounding-areas_2.jpg.webp?itok=MOe73oBc
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2022-05/Sunraise%20in%20Trafalgar%20Square.jpg.webp?itok=duNQP0ol
- Open Graph image description: passed · 6/6 applicable observations
https://www.london.gov.uk/: Loved and Wanted campaign mural
https://www.london.gov.uk/city-hall-blog: An image of London's skyline at dusk
https://www.london.gov.uk/contact-or-visit-city-hall: City Hall, the Crystal building at Royal Docks in London
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: The Crystal at Royal Docks
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: Sunrise in Trafalgar Square
- Social card type: passed · 6/6 applicable observations
https://www.london.gov.uk/: summary
https://www.london.gov.uk/city-hall-blog: summary
https://www.london.gov.uk/contact-or-visit-city-hall: summary
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: summary
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: summary
- HTTPS page: passed · 6/6 applicable observations
https://www.london.gov.uk/: https://www.london.gov.uk/
https://www.london.gov.uk/city-hall-blog: https://www.london.gov.uk/who-we-are/city-hall-blog
https://www.london.gov.uk/contact-or-visit-city-hall: https://www.london.gov.uk/contact-or-visit-city-hall
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
- No insecure embedded resources: passed · 6/6 applicable observations
https://www.london.gov.uk/: 0 HTTP embedded resource URL(s)
https://www.london.gov.uk/city-hall-blog: 0 HTTP embedded resource URL(s)
https://www.london.gov.uk/contact-or-visit-city-hall: 0 HTTP embedded resource URL(s)
https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor: 0 HTTP embedded resource URL(s)
https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square: 0 HTTP embedded resource URL(s)
- Homepage favicon available: unverified · 0/1 applicable observations
https://www.london.gov.uk/themes/custom/gla_lgov/dist/img/favicons/favicon-32x32.png: The image could not be fetched within the network policy and 2 MB limit.
- Homepage sharing image available: unverified · 0/1 applicable observations
https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2025-07/Loved%20and%20Wanted%20campaign%20mural_1.jpg.webp?itok=i3Eee27z: The image could not be fetched within the network policy and 2 MB limit.
- Root sitemap available: unverified · 0/1 applicable observations
https://www.london.gov.uk/sitemap.xml: Sitemap could not be read within the network policy and 1 MB limit.
- Rendered color contrast: unverified · 0/1 applicable observations
https://www.london.gov.uk/: Requires a browser or human assessment; excluded from points.
- Keyboard and focus behavior: unverified · 0/1 applicable observations
https://www.london.gov.uk/: Requires a browser or human assessment; excluded from points.
- HSTS declared: failed · 0/1 applicable observations
https://www.london.gov.uk/: No Strict-Transport-Security header
- Content Security Policy declared: passed · 1/1 applicable observations
https://www.london.gov.uk/: Content-Security-Policy: frame-ancestors *.london.gov.uk
Sample reference: 063f126a3b54a2080e8249378228953cd5e779e5712e553b20ad3093bce24ac5
No confirmed broken links in this sample. Unverified URLs are not evidence of healthy links.
Diagnostic checklist
24 passed · 5 need work · 7 not verified. Open a check for the evidence and suggested fix.
- SEO
- 76.67
- Accessibility
- 100.00
- Structure
- 80.56
- Sharing
- 66.67
- Security
- 75.00
- AI access
- 100.00
- Performance
- 100.00
HTTP response measurement
The three-run HTTP measurement could not be completed.
Same crawler, three sequential requests, DNS and TLS included. Timing is diagnostic only and never decides a position. This is server/network response, not browser loading or Core Web Vitals.
Static checks inspect crawler-visible HTML; they do not certify accessibility or code quality.
SEO1 to improve
Page titlePassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Give each page a descriptive, non-empty <title>.
- https://www.london.gov.uk/Home page - London City Hall
- https://www.london.gov.uk/city-hall-blogCity Hall blog | London City Hall
- https://www.london.gov.uk/contact-or-visit-city-hallContact or visit City Hall | London City Hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorContact City Hall or the Mayor | London City Hall
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareVisiting Trafalgar Square | London City Hall
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Distinct page titlesPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Use a title that describes the purpose of this page rather than repeating the same title across URLs.
- https://www.london.gov.uk/Home page - London City Hall
- https://www.london.gov.uk/city-hall-blogCity Hall blog | London City Hall
- https://www.london.gov.uk/contact-or-visit-city-hallContact or visit City Hall | London City Hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorContact City Hall or the Mayor | London City Hall
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareVisiting Trafalgar Square | London City Hall
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Meta descriptionPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Add a non-empty meta name="description" that summarizes this page.
- https://www.london.gov.uk/Official website of Mayor of London, Sadiq Khan, and the 25 London Assembly Members. Policy, news, jobs, contacts.
- https://www.london.gov.uk/city-hall-blogGet the inside track on our work, read stories from guest bloggers and much more.
- https://www.london.gov.uk/contact-or-visit-city-hallFind out how to get in touch with us and how to visit our buildings and squares.
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorHow to get in touch with City Hall and the Mayor.
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareHow to get to Trafalgar Square and what facilities are available there.
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Self-referencing canonicalNeeds work
5/6 applicable observations passed. 0.83/1 checklist weight earned.
How to improve: Declare exactly one <link rel="canonical"> whose absolute URL is this page's own final URL (same scheme, host, path and query; only a trailing slash or fragment may differ). Cross-URL canonicals belong on duplicate pages, not on the indexable page itself. Reference: Google Search Central, canonicalization.
- https://www.london.gov.uk/https://www.london.gov.uk/home-page-london-city-hall
- https://www.london.gov.uk/city-hall-bloghttps://www.london.gov.uk/who-we-are/city-hall-blog
- https://www.london.gov.uk/contact-or-visit-city-hallhttps://www.london.gov.uk/contact-or-visit-city-hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorhttps://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squarehttps://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Root sitemap availableNot verified
0/1 applicable observations passed. 0.00/1 checklist weight earned.
How to improve: Make the sitemap accessible to the crawler, then rescan.
- https://www.london.gov.uk/sitemap.xmlSitemap could not be read within the network policy and 1 MB limit.
Accessibility0 to improve
Document languagePassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Declare a valid language tag on the html element, such as en or pt-BR.
- https://www.london.gov.uk/en-gb
- https://www.london.gov.uk/city-hall-blogen-gb
- https://www.london.gov.uk/contact-or-visit-city-hallen-gb
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayoren-gb
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareen-gb
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Image alternatives declaredPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Add alt text to informative images. Use alt="" for decorative images. This check does not judge text quality.
- https://www.london.gov.uk/0 of 16 images lack an alt attribute
- https://www.london.gov.uk/city-hall-blog0 of 32 images lack an alt attribute
- https://www.london.gov.uk/contact-or-visit-city-hall0 of 10 images lack an alt attribute
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 of 2 images lack an alt attribute
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 of 3 images lack an alt attribute
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Form controls namedPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Associate a label with each visible form control, or provide a non-empty aria-label / valid aria-labelledby.
- https://www.london.gov.uk/0 of 6 controls have no HTML label
- https://www.london.gov.uk/city-hall-blog0 of 1 controls have no HTML label
- https://www.london.gov.uk/contact-or-visit-city-hall0 of 1 controls have no HTML label
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 of 1 controls have no HTML label
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 of 1 controls have no HTML label
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Links namedPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Give every link visible text or a meaningful accessible name.
- https://www.london.gov.uk/0 of 264 links have no HTML name
- https://www.london.gov.uk/city-hall-blog0 of 327 links have no HTML name
- https://www.london.gov.uk/contact-or-visit-city-hall0 of 259 links have no HTML name
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 of 280 links have no HTML name
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 of 258 links have no HTML name
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Descriptive link textPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Replace generic link text such as "click here", "read more" or "saiba mais" with text (or an aria-label) that describes the destination. Reference: WCAG 2.4.4 Link Purpose (In Context).
- https://www.london.gov.uk/0 of 264 links use generic text
- https://www.london.gov.uk/city-hall-blog0 of 327 links use generic text
- https://www.london.gov.uk/contact-or-visit-city-hall0 of 259 links use generic text
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 of 280 links use generic text
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 of 258 links use generic text
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Rendered color contrastNot verified
0/1 applicable observations passed. Informational; excluded from points.
How to improve: Check foreground/background contrast in the rendered page.
- https://www.london.gov.uk/Requires a browser or human assessment; excluded from points.
Keyboard and focus behaviorNot verified
0/1 applicable observations passed. Informational; excluded from points.
How to improve: Test every interactive control with a keyboard and inspect focus visibility.
- https://www.london.gov.uk/Requires a browser or human assessment; excluded from points.
Structure2 to improve
Main headingPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Add a descriptive H1 identifying the main topic.
- https://www.london.gov.uk/1 H1 element(s)
- https://www.london.gov.uk/city-hall-blog1 H1 element(s)
- https://www.london.gov.uk/contact-or-visit-city-hall1 H1 element(s)
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor1 H1 element(s)
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square1 H1 element(s)
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Heading hierarchyNeeds work
5/6 applicable observations passed. 0.83/1 checklist weight earned.
How to improve: Nest headings logically without skipping a level, starting with H1.
- https://www.london.gov.uk/1 skipped heading level(s)
- https://www.london.gov.uk/city-hall-blog0 skipped heading level(s)
- https://www.london.gov.uk/contact-or-visit-city-hall0 skipped heading level(s)
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 skipped heading level(s)
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 skipped heading level(s)
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Main landmarkPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Mark the main content with one <main> or role="main" landmark.
- https://www.london.gov.uk/1 main landmarks
- https://www.london.gov.uk/city-hall-blog1 main landmarks
- https://www.london.gov.uk/contact-or-visit-city-hall1 main landmarks
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor1 main landmarks
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square1 main landmarks
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Mobile viewportPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Add meta name="viewport" with width=device-width and do not disable user zoom.
- https://www.london.gov.uk/width=device-width, initial-scale=1, viewport-fit=cover
- https://www.london.gov.uk/city-hall-blogwidth=device-width, initial-scale=1, viewport-fit=cover
- https://www.london.gov.uk/contact-or-visit-city-hallwidth=device-width, initial-scale=1, viewport-fit=cover
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorwidth=device-width, initial-scale=1, viewport-fit=cover
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squarewidth=device-width, initial-scale=1, viewport-fit=cover
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Image dimensions declaredPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Declare width and height attributes (or an inline aspect-ratio style) on every visible <img> so the browser reserves space before the image loads. Reference: web.dev / Lighthouse "image elements have explicit width and height" (layout shift).
- https://www.london.gov.uk/0 of 16 images lack width/height attributes or an aspect-ratio style
- https://www.london.gov.uk/city-hall-blog0 of 32 images lack width/height attributes or an aspect-ratio style
- https://www.london.gov.uk/contact-or-visit-city-hall0 of 10 images lack width/height attributes or an aspect-ratio style
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 of 2 images lack width/height attributes or an aspect-ratio style
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 of 3 images lack width/height attributes or an aspect-ratio style
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Structured data syntaxNeeds work
0/6 applicable observations passed. 0.00/1 checklist weight earned.
How to improve: Provide JSON-LD with @context and @type (or a typed @graph). Match the markup to the visible content; syntax alone does not validate its meaning. Reference: schema.org and Google structured data guidelines.
- https://www.london.gov.uk/0 of 0 blocks have valid JSON-LD structure
- https://www.london.gov.uk/city-hall-blog0 of 0 blocks have valid JSON-LD structure
- https://www.london.gov.uk/contact-or-visit-city-hall0 of 0 blocks have valid JSON-LD structure
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 of 0 blocks have valid JSON-LD structure
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 of 0 blocks have valid JSON-LD structure
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Sharing1 to improve
Open Graph titlePassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Provide a non-empty og:title meta property.
- https://www.london.gov.uk/Home page - London City Hall
- https://www.london.gov.uk/city-hall-blogCity Hall blog
- https://www.london.gov.uk/contact-or-visit-city-hallContact or visit City Hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorContact City Hall or the Mayor
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareVisiting Trafalgar Square
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Open Graph descriptionPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Provide a non-empty og:description meta property.
- https://www.london.gov.uk/Official website of Mayor of London, Sadiq Khan, and the 25 London Assembly Members. Policy, news, jobs, contacts.
- https://www.london.gov.uk/city-hall-blogGet the inside track on our work, read stories from guest bloggers and much more.
- https://www.london.gov.uk/contact-or-visit-city-hallFind out how to get in touch with us and how to visit our buildings and squares.
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorHow to get in touch with City Hall and the Mayor.
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareHow to get to Trafalgar Square and what facilities are available there.
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Open Graph typeNeeds work
0/6 applicable observations passed. 0.00/1 checklist weight earned.
How to improve: Declare og:type, such as website or article.
- https://www.london.gov.uk/No og:type
- https://www.london.gov.uk/city-hall-blogNo og:type
- https://www.london.gov.uk/contact-or-visit-city-hallNo og:type
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorNo og:type
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareNo og:type
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Open Graph URLPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Set og:url to an absolute HTTP(S) URL for this content.
- https://www.london.gov.uk/https://www.london.gov.uk/home-page-london-city-hall
- https://www.london.gov.uk/city-hall-bloghttps://www.london.gov.uk/who-we-are/city-hall-blog
- https://www.london.gov.uk/contact-or-visit-city-hallhttps://www.london.gov.uk/contact-or-visit-city-hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorhttps://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squarehttps://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Open Graph image URLPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Set og:image to an absolute HTTP(S) image URL. Homepage image availability is checked separately.
- https://www.london.gov.uk/https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2025-07/Loved%20and%20Wanted%20campaign%20mural_1.jpg.webp?itok=i3Eee27z
- https://www.london.gov.uk/city-hall-bloghttps://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2021-12/London%20skyline%20at%20dusk_496x496_VRU_2Dec21.png.webp?itok=V72qwHvU
- https://www.london.gov.uk/contact-or-visit-city-hallhttps://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2022-03/Large_Web_Image-Crystal-building-Front-on-darker.jpg.webp?itok=8OGle0vm
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorhttps://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2021-12/Large_Web_Image-The-Crystal-and-surrounding-areas_2.jpg.webp?itok=MOe73oBc
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squarehttps://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2022-05/Sunraise%20in%20Trafalgar%20Square.jpg.webp?itok=duNQP0ol
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Open Graph image descriptionPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Describe the sharing image with og:image:alt.
- https://www.london.gov.uk/Loved and Wanted campaign mural
- https://www.london.gov.uk/city-hall-blogAn image of London's skyline at dusk
- https://www.london.gov.uk/contact-or-visit-city-hallCity Hall, the Crystal building at Royal Docks in London
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorThe Crystal at Royal Docks
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squareSunrise in Trafalgar Square
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Social card typePassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Declare twitter:card as summary or summary_large_image for a website card.
- https://www.london.gov.uk/summary
- https://www.london.gov.uk/city-hall-blogsummary
- https://www.london.gov.uk/contact-or-visit-city-hallsummary
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorsummary
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squaresummary
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Homepage favicon availableNot verified
0/1 applicable observations passed. 0.00/1 checklist weight earned.
How to improve: Check access, image size and Content-Type, then rescan.
- https://www.london.gov.uk/themes/custom/gla_lgov/dist/img/favicons/favicon-32x32.pngThe image could not be fetched within the network policy and 2 MB limit.
Homepage sharing image availableNot verified
0/1 applicable observations passed. 0.00/1 checklist weight earned.
How to improve: Check access, image size and Content-Type, then rescan.
- https://www.london.gov.uk/sites/default/files/styles/open_graph_image/public/2025-07/Loved%20and%20Wanted%20campaign%20mural_1.jpg.webp?itok=i3Eee27zThe image could not be fetched within the network policy and 2 MB limit.
Security1 to improve
HTTPS pagePassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Serve the page over HTTPS with a valid certificate.
- https://www.london.gov.uk/https://www.london.gov.uk/
- https://www.london.gov.uk/city-hall-bloghttps://www.london.gov.uk/who-we-are/city-hall-blog
- https://www.london.gov.uk/contact-or-visit-city-hallhttps://www.london.gov.uk/contact-or-visit-city-hall
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayorhttps://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-squarehttps://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
No insecure embedded resourcesPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Use HTTPS for embedded script, image, stylesheet, frame, audio and video URLs.
- https://www.london.gov.uk/0 HTTP embedded resource URL(s)
- https://www.london.gov.uk/city-hall-blog0 HTTP embedded resource URL(s)
- https://www.london.gov.uk/contact-or-visit-city-hall0 HTTP embedded resource URL(s)
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor0 HTTP embedded resource URL(s)
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square0 HTTP embedded resource URL(s)
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
HSTS declaredNeeds work
0/1 applicable observations passed. 0.00/1 checklist weight earned.
How to improve: Send Strict-Transport-Security on HTTPS responses with max-age of at least 15552000 seconds (180 days); OWASP recommends one year and includeSubDomains. Reference: OWASP HTTP Strict Transport Security cheat sheet, MDN.
- https://www.london.gov.uk/No Strict-Transport-Security header
Content Security Policy declaredPassed
1/1 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Send a Content-Security-Policy header (or a <meta http-equiv="Content-Security-Policy"> on the page) that restricts script and resource sources. This check verifies presence, not policy strength. Reference: OWASP Content Security Policy cheat sheet, MDN.
- https://www.london.gov.uk/Content-Security-Policy: frame-ancestors *.london.gov.uk
AI access0 to improve
Content in initial HTMLPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Render meaningful main content on the server so readers can access it without executing JavaScript.
- https://www.london.gov.uk/3285 characters of crawler-visible content (minimum 100)
- https://www.london.gov.uk/city-hall-blog7184 characters of crawler-visible content (minimum 100)
- https://www.london.gov.uk/contact-or-visit-city-hall979 characters of crawler-visible content (minimum 100)
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor4850 characters of crawler-visible content (minimum 100)
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square2745 characters of crawler-visible content (minimum 100)
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Performance0 to improve
HTML transfer budgetPassed
6/6 applicable observations passed. 1.00/1 checklist weight earned.
How to improve: Keep the uncompressed HTML at or below 500 KB. Remove duplicated inline payloads and unnecessary markup.
- https://www.london.gov.uk/313,855 bytes of HTML; budget 500,000
- https://www.london.gov.uk/city-hall-blog368,130 bytes of HTML; budget 500,000
- https://www.london.gov.uk/contact-or-visit-city-hall281,457 bytes of HTML; budget 500,000
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor275,572 bytes of HTML; budget 500,000
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square272,378 bytes of HTML; budget 500,000
Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.
Repeated homepage HTTP responseNot verified
0/1 applicable observations passed. Informational; excluded from points.
How to improve: Improve server response and CDN caching. Median of three requests; diagnostic only, never a ranking tiebreak.
- https://www.london.gov.uk/0/3 successful measurements to response headers. Includes DNS and TLS; excludes rendering.
Browser loading and Core Web VitalsNot verified
0/1 applicable observations passed. Informational; excluded from points.
How to improve: Measure LCP, INP and CLS with browser and field tools.
- https://www.london.gov.uk/Requires a browser or human assessment; excluded from points.
Checklist quality-v4. Competitive weights: SEO 25%, Accessibility 25%, Structure 25%, Sharing 10%, Security 15%. AI access and Performance are diagnostic only. This expanded report may include pages outside the competitive sample. Unverified scored checks earn no points; not-applicable and manual checks are excluded. Full methodology and references.
HTTP response timings
HTTP response time measured by our crawler; not browser loading speed.
- https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor1,181 ms
- https://www.london.gov.uk/city-hall-blog881 ms
- https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square695 ms
- https://www.london.gov.uk/658 ms
- https://www.london.gov.uk/contact-or-visit-city-hall431 ms
Pages inspected (6)
All 6 pages from this scan.
| Page | Status | Title | H1 | ms |
|---|---|---|---|---|
| https://www.london.gov.uk/ | 200 | Home page - London City HallPage checklist evidence
| 1 | 658 |
| https://www.london.gov.uk/city-hall-blog | 200 | City Hall blog | London City HallPage checklist evidence
| 1 | 881 |
| https://www.london.gov.uk/contact-or-visit-city-hall | 200 | Contact or visit City Hall | London City HallPage checklist evidence
| 1 | 431 |
| https://www.london.gov.uk/contact-or-visit-city-hall/contact-city-hall-or-mayor | 200 | Contact City Hall or the Mayor | London City HallPage checklist evidence
| 1 | 1,181 |
| https://www.london.gov.uk/contact-or-visit-city-hall/visiting-trafalgar-square | 200 | Visiting Trafalgar Square | London City HallPage checklist evidence
| 1 | 695 |
| https://www.london.gov.uk/events | 200 | Upcoming events | London City HallPage checklist evidence
| 1 | 277 |
Optional AI signals
Informational signals; these do not certify search visibility or unlock S-Tier.
- llms.txtGuide for AI agents
- Structured dataJSON-LD on the homepage
- Semantic HTMLMain and navigation landmarks
Browser measurements · supplementary
Mobile page report
london.gov.uk
https://london.gov.uk/
Measured · 9/13/2026, 3:21:03 PM UTC
Redirected to: https://www.london.gov.uk/
- Speed
- 43
- Accessibility
- 100
- SEO basics
- 100
- Main content (LCP)
- 20.1 s
- Layout shifts (CLS)
- 0
- Blocking time (TBT)
- 520 ms
Measurement notes (1)
- The page may not be loading as expected because your test URL (https://london.gov.uk/) was redirected to https://www.london.gov.uk/. Try testing the second URL directly.
Your next improvements
Measured findings to investigate, ordered by audit score.
1. LCP request discovery
[Optimize LCP](https://developer.chrome.com/docs/performance/insights/lcp-discovery) by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
2. Largest Contentful Paint
Largest Contentful Paint marks the time at which the largest text or image is painted. [Learn more about the Largest Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/lighthouse-largest-contentful-paint/)
3. SVG elements with an `img` role do not have an accessible text alternative
Ensures SVG elements with an `img`, `graphics-document` or `graphics-symbol` role have an accessible text alternative. [Learn more about SVG alt text](https://dequeuniversity.com/rules/axe/4.12/svg-img-alt).
div.social-media-link > a.u-inline-block > div.u-rounded-full > svg.simple-icons-icon · <svg role="img" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg" class="simple-icons-icon simple-icons-icon__linkedin" focusable="false">
4. First Contentful Paint
First Contentful Paint marks the time at which the first text or image is painted. [Learn more about the First Contentful Paint metric](https://developer.chrome.com/docs/lighthouse/performance/first-contentful-paint/).
5. Network dependency tree
[Avoid chaining critical requests](https://developer.chrome.com/docs/performance/insights/network-dependency-tree) by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
6. Forced reflow
A forced reflow occurs when JavaScript queries geometric properties (such as `offsetWidth`) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about [forced reflows](https://developer.chrome.com/docs/performance/insights/forced-reflow) and possible mitigations.
7. Time to Interactive
Time to Interactive is the amount of time it takes for the page to become fully interactive. [Learn more about the Time to Interactive metric](https://developer.chrome.com/docs/lighthouse/performance/interactive/).
8. Speed Index
Speed Index shows how quickly the contents of a page are visibly populated. [Learn more about the Speed Index metric](https://developer.chrome.com/docs/lighthouse/performance/speed-index/).
Fix with your coding assistant
Copy a ready-to-use prompt with the issues and affected URLs.
Battle scoring rules
The arena winner follows the verified ranking: internal link health first, then the published two-decimal quality score. Both sites need two agreeing standard observations. Browser performance, accessibility and SEO are complementary diagnostics and do not move the ranking or decide its winner. Page-only battles compare compatible rounds; performance differences up to five points draw, and equal round wins remain a tie. Missing measurements never count as zero. Browser audits do not certify accessibility. Saved results keep their measured evidence; start a rematch for a newer comparison.