Twilio

43/43 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Give each page a descriptive, non-empty <title>.

• https://www.twilio.com/en-usConversational AI and APIs for SMS, Email, Voice | Twilio
• https://www.twilio.com/code-exchangeCode Exchange | Twilio
• https://www.twilio.com/de-deDialogorientierte KI und APIs für SMS, E-Mail und Sprachdienste | Twilio
• https://www.twilio.com/docsDocs: API Reference, Tutorials, and Integration | Twilio
• https://www.twilio.com/docs/conversationsTwilio Conversations | Twilio

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

43/43 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.twilio.com/en-usConversational AI and APIs for SMS, Email, Voice | Twilio
• https://www.twilio.com/code-exchangeCode Exchange | Twilio
• https://www.twilio.com/de-deDialogorientierte KI und APIs für SMS, E-Mail und Sprachdienste | Twilio
• https://www.twilio.com/docsDocs: API Reference, Tutorials, and Integration | Twilio
• https://www.twilio.com/docs/conversationsTwilio Conversations | Twilio

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

41/42 applicable observations passed. 0.98/1 checklist weight earned.

How to improve: Add a non-empty meta name="description" that summarizes this page.

• https://www.twilio.com/en-us/lp/idc-marketscape-cpaas-2025Discover why Twilio excels in CPaaS. Lead in innovation and cross-channel engagement. Learn how to leverage Twilio for your business success today!
• https://www.twilio.com/en-us/lp/omdia-cep-universe-2026No meta description
• https://www.twilio.com/en-usBuild amazing customer experiences on the Twilio platform with APIs for SMS, RCS, voice, and email, plus conversational AI for smarter engagement, and identity verification for trust.
• https://www.twilio.com/code-exchangeWith Twilio, unite communications and strengthen customer relationships across your business - from marketing and sales to customer service and operations.
• https://www.twilio.com/de-deSchaffen Sie auf der Twilio-Plattform mit APIs für SMS, RCS, Sprachdienste und E-Mail herausragende Kundenerfahrungen. Nutzen Sie dialogorientierte KI für eine intelligentere Kundenansprache und Identitätsüberprüfung für mehr Vertrauen.

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

41/42 applicable observations passed. 0.98/1 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.twilio.com/code-exchangeNo canonical URL
• https://www.twilio.com/en-us/lp/idc-marketscape-cpaas-2025https://www.twilio.com/en-us/lp/idc-marketscape-cpaas-2025
• https://www.twilio.com/en-ushttps://www.twilio.com/en-us
• https://www.twilio.com/de-dehttps://www.twilio.com/de-de
• https://www.twilio.com/docshttps://www.twilio.com/docs

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

1/1 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Publish a sitemap URL set or index at /sitemap.xml. This checks its root, not every listed URL.

• https://www.twilio.com/sitemap.xmlHTTP 200; sitemap root found

43/43 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.twilio.com/en-usen
• https://www.twilio.com/code-exchangeen
• https://www.twilio.com/de-dede
• https://www.twilio.com/docsen
• https://www.twilio.com/docs/conversationsen

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

34/43 applicable observations passed. 0.79/1 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.twilio.com/de-de11 of 45 images lack an alt attribute
• https://www.twilio.com/en-us/blog11 of 104 images lack an alt attribute
• https://www.twilio.com/en-us/careers4 of 60 images lack an alt attribute
• https://www.twilio.com/en-us/cpaas4 of 20 images lack an alt attribute
• https://www.twilio.com/en-us/customer-data-platform5 of 21 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.

5/20 applicable observations passed. 0.25/1 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.twilio.com/en-us0 of 0 controls have no HTML label
• https://www.twilio.com/de-de0 of 0 controls have no HTML label
• https://www.twilio.com/docs0 of 0 controls have no HTML label
• https://www.twilio.com/docs/conversations0 of 0 controls have no HTML label
• https://www.twilio.com/docs/libraries0 of 0 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.

43/43 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Give every button visible text or an accessible name, including icon-only buttons.

• https://www.twilio.com/en-us0 of 73 buttons have no HTML name
• https://www.twilio.com/code-exchange0 of 1 buttons have no HTML name
• https://www.twilio.com/de-de0 of 73 buttons have no HTML name
• https://www.twilio.com/docs0 of 3 buttons have no HTML name
• https://www.twilio.com/docs/conversations0 of 27 buttons 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.

28/43 applicable observations passed. 0.65/1 checklist weight earned.

How to improve: Give every link visible text or a meaningful accessible name.

• https://www.twilio.com/en-us/ai2 of 382 links have no HTML name
• https://www.twilio.com/en-us/cpaas2 of 388 links have no HTML name
• https://www.twilio.com/en-us/customer-data-platform2 of 379 links have no HTML name
• https://www.twilio.com/en-us/customer-engagement-platform2 of 366 links have no HTML name
• https://www.twilio.com/en-us/developers2 of 387 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.

34/43 applicable observations passed. 0.79/1 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.twilio.com/en-us/ai5 of 382 links use generic text: "learn more"
• https://www.twilio.com/en-us/changelog11 of 386 links use generic text: "learn more", "here"
• https://www.twilio.com/en-us/events4 of 369 links use generic text: "learn more"
• https://www.twilio.com/en-us/integrations3 of 361 links use generic text: "learn more"
• https://www.twilio.com/en-us/legal/privacy5 of 395 links use generic text: "here"

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

0/1 applicable observations passed. Informational; excluded from points.

How to improve: Check foreground/background contrast in the rendered page.

• https://www.twilio.com/en-usRequires a browser or human assessment; excluded from points.

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.twilio.com/en-usRequires a browser or human assessment; excluded from points.

43/43 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Add a descriptive H1 identifying the main topic.

• https://www.twilio.com/en-us1 H1 element(s)
• https://www.twilio.com/code-exchange1 H1 element(s)
• https://www.twilio.com/de-de1 H1 element(s)
• https://www.twilio.com/docs1 H1 element(s)
• https://www.twilio.com/docs/conversations1 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.

24/43 applicable observations passed. 0.56/1 checklist weight earned.

How to improve: Nest headings logically without skipping a level, starting with H1.

• https://www.twilio.com/en-us1 skipped heading level(s)
• https://www.twilio.com/de-de1 skipped heading level(s)
• https://www.twilio.com/en-us/ai1 skipped heading level(s)
• https://www.twilio.com/en-us/changelog2 skipped heading level(s)
• https://www.twilio.com/en-us/company/diversity1 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.

43/43 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.twilio.com/en-us1 main landmarks
• https://www.twilio.com/code-exchange1 main landmarks
• https://www.twilio.com/de-de1 main landmarks
• https://www.twilio.com/docs1 main landmarks
• https://www.twilio.com/docs/conversations1 main landmarks

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

43/43 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.twilio.com/en-uswidth=device-width, initial-scale=1
• https://www.twilio.com/code-exchangewidth=device-width, initial-scale=1
• https://www.twilio.com/de-dewidth=device-width, initial-scale=1
• https://www.twilio.com/docswidth=device-width
• https://www.twilio.com/docs/conversationswidth=device-width

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

1/43 applicable observations passed. 0.02/1 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.twilio.com/en-us45 of 45 images lack width/height attributes or an aspect-ratio style
• https://www.twilio.com/de-de45 of 45 images lack width/height attributes or an aspect-ratio style
• https://www.twilio.com/docs1 of 2 images lack width/height attributes or an aspect-ratio style
• https://www.twilio.com/docs/conversations1 of 2 images lack width/height attributes or an aspect-ratio style
• https://www.twilio.com/docs/libraries1 of 1 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.

25/43 applicable observations passed. 0.58/1 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.twilio.com/code-exchange0 of 0 blocks have valid JSON-LD structure
• https://www.twilio.com/en-us/ai0 of 0 blocks have valid JSON-LD structure
• https://www.twilio.com/en-us/blog0 of 0 blocks have valid JSON-LD structure
• https://www.twilio.com/en-us/catalog0 of 0 blocks have valid JSON-LD structure
• https://www.twilio.com/en-us/changelog0 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.

34/43 applicable observations passed. 0.79/1 checklist weight earned.

How to improve: Provide a non-empty og:title meta property.

• https://www.twilio.com/code-exchangeNo og:title
• https://www.twilio.com/docsNo og:title
• https://www.twilio.com/docs/conversationsNo og:title
• https://www.twilio.com/docs/librariesNo og:title
• https://www.twilio.com/docs/messaging/apiNo og:title

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

33/43 applicable observations passed. 0.77/1 checklist weight earned.

How to improve: Provide a non-empty og:description meta property.

• https://www.twilio.com/code-exchangeNo og:description
• https://www.twilio.com/docsNo og:description
• https://www.twilio.com/docs/conversationsNo og:description
• https://www.twilio.com/docs/librariesNo og:description
• https://www.twilio.com/docs/messaging/apiNo og:description

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

34/43 applicable observations passed. 0.79/1 checklist weight earned.

How to improve: Declare og:type, such as website or article.

• https://www.twilio.com/code-exchangeNo og:type
• https://www.twilio.com/docsNo og:type
• https://www.twilio.com/docs/conversationsNo og:type
• https://www.twilio.com/docs/librariesNo og:type
• https://www.twilio.com/docs/messaging/apiNo og:type

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

34/43 applicable observations passed. 0.79/1 checklist weight earned.

How to improve: Set og:url to an absolute HTTP(S) URL for this content.

• https://www.twilio.com/code-exchangeNo og:url
• https://www.twilio.com/docsNo og:url
• https://www.twilio.com/docs/conversationsNo og:url
• https://www.twilio.com/docs/librariesNo og:url
• https://www.twilio.com/docs/messaging/apiNo og:url

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

34/43 applicable observations passed. 0.79/1 checklist weight earned.

How to improve: Set og:image to an absolute HTTP(S) image URL. Homepage image availability is checked separately.

• https://www.twilio.com/code-exchangeNo og:image
• https://www.twilio.com/docsNo og:image
• https://www.twilio.com/docs/conversationsNo og:image
• https://www.twilio.com/docs/librariesNo og:image
• https://www.twilio.com/docs/messaging/apiNo og:image

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

0/34 applicable observations passed. 0.00/1 checklist weight earned.

How to improve: Describe the sharing image with og:image:alt.

• https://www.twilio.com/en-usNo sharing image description
• https://www.twilio.com/code-exchangeNo sharing image description
• https://www.twilio.com/de-deNo sharing image description
• https://www.twilio.com/docsNo sharing image description
• https://www.twilio.com/docs/conversationsNo sharing image description

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

34/43 applicable observations passed. 0.79/1 checklist weight earned.

How to improve: Declare twitter:card as summary or summary_large_image for a website card.

• https://www.twilio.com/code-exchangeNo social card type
• https://www.twilio.com/docsNo social card type
• https://www.twilio.com/docs/conversationsNo social card type
• https://www.twilio.com/docs/librariesNo social card type
• https://www.twilio.com/docs/messaging/apiNo social card type

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

1/1 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Serve a non-empty public image with an image Content-Type.

• https://www.twilio.com/content/dam/twilio-com/core-assets/social/favicon-32x32.pngHTTP 200; image/png

1/1 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Serve a non-empty public image with an image Content-Type.

• https://www.twilio.com/content/dam/twilio-com/core-assets/social/twilio-com-default-ogimage.pngHTTP 200; image/png

43/43 applicable observations passed. 1.00/1 checklist weight earned.

How to improve: Serve the page over HTTPS with a valid certificate.

• https://www.twilio.com/en-ushttps://www.twilio.com/en-us
• https://www.twilio.com/code-exchangehttps://www.twilio.com/code-exchange
• https://www.twilio.com/de-dehttps://www.twilio.com/de-de
• https://www.twilio.com/docshttps://www.twilio.com/docs
• https://www.twilio.com/docs/conversationshttps://www.twilio.com/docs/conversations

Showing up to five examples, with failed observations first. Full per-page observations are listed below and available in the report API.

43/43 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.twilio.com/en-us0 HTTP embedded resource URL(s)
• https://www.twilio.com/code-exchange0 HTTP embedded resource URL(s)
• https://www.twilio.com/de-de0 HTTP embedded resource URL(s)
• https://www.twilio.com/docs0 HTTP embedded resource URL(s)
• https://www.twilio.com/docs/conversations0 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.

1/1 applicable observations passed. 1.00/1 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.twilio.com/en-usStrict-Transport-Security: max-age=31557600

0/1 applicable observations passed. 0.00/1 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.twilio.com/en-usNo Content-Security-Policy header or meta element

43/43 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.twilio.com/en-us6204 characters of crawler-visible content (minimum 100)
• https://www.twilio.com/code-exchange166 characters of crawler-visible content (minimum 100)
• https://www.twilio.com/de-de7042 characters of crawler-visible content (minimum 100)
• https://www.twilio.com/docs8458 characters of crawler-visible content (minimum 100)
• https://www.twilio.com/docs/conversations5412 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.

11/43 applicable observations passed. 0.26/1 checklist weight earned.

How to improve: Keep the uncompressed HTML at or below 500 KB. Remove duplicated inline payloads and unnecessary markup.

• https://www.twilio.com/en-us725,513 bytes of HTML; budget 500,000
• https://www.twilio.com/de-de702,836 bytes of HTML; budget 500,000
• https://www.twilio.com/en-us/ai650,692 bytes of HTML; budget 500,000
• https://www.twilio.com/en-us/blog733,343 bytes of HTML; budget 500,000
• https://www.twilio.com/en-us/careers732,069 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.

1/1 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.twilio.com/en-us3/3 successful measurements to response headers. Includes DNS and TLS; excludes rendering.

0/1 applicable observations passed. Informational; excluded from points.

How to improve: Measure LCP, INP and CLS with browser and field tools.

• https://www.twilio.com/en-usRequires a browser or human assessment; excluded from points.