Metadata completeness

What it checks

The extension reads the page’s <head> in your browser and looks for four things:

• a non-empty <title>
• a non-empty <meta name="description">
• a <link rel="canonical">
• an Open Graph title or description (og:title or og:description)

A missing title or description is treated as more serious than a missing canonical or Open Graph tag, because those two are what an agent uses to decide what the page is before reading it.

Results

Status	When
Pass	All four are present
Warn	The title and description are present, but the canonical or Open Graph metadata is missing
Fail	The title or the meta description is missing
Unmeasured	The extension could not read the page (open it in the active tab)

The result names exactly which items are missing.

How to fix

Add whichever items the result lists to the page’s <head>:

<head>
  <title>Blue running shoes | Example Store</title>
  <meta name="description" content="Lightweight blue running shoes for road and trail." />
  <link rel="canonical" href="https://example.com/shoes/blue-runner" />
  <meta property="og:title" content="Blue running shoes" />
  <meta property="og:description" content="Lightweight blue running shoes for road and trail." />
</head>

Point the canonical at the preferred URL for the content, so an agent that reaches the same page through several URLs can tell they are one page.

Support by agent and browser

Announced means the vendor’s own docs or announcement say so. Published is the date on the vendor’s own page, where it has one. Checked is the last time our weekly research found that page still saying so.

Agent	Status	Source
AI assistants
Claude Anthropic	Partial support	partial Claude API docs: Web fetch tool Undated · Checked 9 Oct 2026web_fetch_tool_result document includes a 'title' field alongside the text.
Copilot Microsoft	Supported (announced)	Microsoft Advertising blog: Optimizing your content for inclusion in AI search answers (Krishna Madhavan, Bing) Published 8 Oct 2025 · Checked 9 Oct 2026Title, meta description and H1 named as signals AI systems use to interpret purpose and scope; canonical and Open Graph not mentioned.
AI browsers
ChatGPT Atlas OpenAI	Partial support	partial OpenAI Help Center: Publishers and Developers - FAQ Published 1 Sept 2026 · Checked 9 Oct 2026'we may surface just the link and page title in ChatGPT Atlas' for disallowed pages; honours noindex meta tag. No mention of description/canonical/OG. Article date month-only.

No evidence yet24

• ChatGPT
• Gemini
• Perplexity
• Meta AI
• Comet
• Dia
• Gemini in Chrome
• Edge Copilot Mode
• Claude Code
• Cursor
• Codex
• GitHub Copilot
• Windsurf
• CCBot
• Applebot
• Amazonbot
• Bytespider
• Cohere
• Mistral
• DuckAssist
• Chrome
• Edge
• Firefox
• Safari

Names and marks belong to their owners and are used only to identify products. None of these vendors is affiliated with Sitebulb. Spotted something out of date? Send a correction.

Adoption on the top 100 sites

72%

71 of 99 measured sites implement it

Scanned 23 Oct 2026 with the Sitebulb Labs extension, against the Tranco list (tranco-56Z8N). 1 sites couldn’t be measured (bot challenge or timeout) and are left out of the share.

Sites implementing it71

1. #2 cloudflare.com
2. #3 aws.amazon.com (via amazonaws.com)
3. #9 microsoft.com
4. #11 youtube.com
5. #12 apple.com
6. #13 instagram.com
7. #15 mail.ru
8. #16 x.com (via twitter.com)
9. #18 linkedin.com
10. #20 dzen.ru
11. #24 azure.microsoft.com (via azure.com)
12. #26 m365.cloud.microsoft (via office.com)
13. #32 github.com
14. #33 wikipedia.org (with warnings)
15. #37 fastly.com (via fastly.net)
16. #39 whatsapp.com (via whatsapp.net)
17. #42 bing.com
18. #43 netflix.com (with warnings)
19. #44 triplinkintl.com
20. #48 gandi.net
21. #50 marketingplatform.google.com (via doubleclick.net)
22. #52 uk.pinterest.com (via pinterest.com)
23. #53 icloud.com
24. #55 wordpress.org
25. #56 teams.live.com (via skype.com)
26. #60 digicert.com
27. #61 adobe.com
28. #68 zoom.com (via zoom.us)
29. #69 uk.yahoo.com (via yahoo.com)
30. #71 endpoints.news (with warnings)
31. #75 roblox.com
32. #76 opera.com
33. #80 baidu.com (with warnings)
34. #83 ya.ru (via yandex.net)
35. #85 ntp.org
36. #86 msn.com (with warnings)
37. #87 qq.com (with warnings)
38. #90 vimeo.com
39. #91 primevideo.com (via amazonvideo.com)
40. #93 bunny.net (via b-cdn.net) (with warnings)
41. #94 blogger.com (via blogspot.com) (with warnings)
42. #95 mozilla.org
43. #96 f5.com (with warnings)
44. #99 store.epicgames.com (via epicgames.com)
45. #101 wordpress.com
46. #103 reddit.com
47. #106 sentry.io
48. #107 letsencrypt.org (via lencr.org) (with warnings)
49. #109 ui.com
50. #110 european-union.europa.eu (via europa.eu)
51. #112 chatgpt.com
52. #116 bitly.com (via bit.ly)
53. #117 ipify.org (with warnings)
54. #120 samsung.com
55. #122 intuit.com
56. #127 openai.com
57. #128 one.one.one.one (via cloudflare-dns.com)
58. #131 pages.github.com (via github.io)
59. #132 dropbox.com
60. #133 skybridge.click (with warnings)
61. #135 discord.com (via discord.gg)
62. #136 developer.adobe.com (via adobe.io)
63. #140 android.com
64. #144 vk.ru (with warnings)
65. #150 t-online.de
66. #153 webex.com
67. #154 snapchat.com
68. #156 godaddy.com
69. #158 kaspersky.co.uk (via kaspersky.com) (with warnings)
70. #159 firebase.google.com (via crashlytics.com)
71. #160 tumblr.com

Overview

8/9

Established

Widely supported and widely deployed.

How this rating is worked out8 of 9 points

Factor	Points	Why
Vendor support	2 / 3	1 vendor supporting, 2 partly or planned
Top-100 adoption	3 / 3	72% of measured sites
Spec maturity	3 / 3	Published standard

8 or more points is Established, 5 to 7 is Gaining traction, 2 to 4 is Speculative and under 2 is Stalled. A feature is also Stalled when more vendors have said no than yes. Read the spec.

Community insights

No community insights for this feature yet.

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