TidyToolsAI Crawler Index · data as of · updated daily

AI crawler · Meta · Ads review

Which websites block meta-externalads?

As of 2026-10-01, 32 of the 853 popular websites whose robots.txt we could read (3.8%) block meta-externalads, Meta's ads review crawler, on the home page; 5 more block it on some paths. Among the top 100 sites: 9.6%.

3.8%
of 853 readable sites block meta-externalads
9.6%
of the top 100
#28
most blocked of 29 AI crawlers
816
sites allow it on the home page

Blocked by category

CategorySites readBlock meta-externalads
Social4816.7%
Travel137.7%
Other2605.4%
Reference434.7%
E-commerce583.4%
News & media1261.6%
Entertainment681.5%
Tech1541.3%
AI90%
Education200%
Finance160%
Government330%
Telecom50%

Popular sites that block meta-externalads (32)

  1. facebook.com Social
  2. instagram.com Social
  3. twitter.com Social
  4. linkedin.com Social
  5. netflix.com Entertainment
  6. x.com Social
  7. reddit.com Social
  8. flickr.com Other
  9. meraki.com Tech
  10. imdb.com Reference
  11. weibo.com Social
  12. trustpilot.com Other
  13. wsj.com News & media
  14. sohu.com Tech
  15. threads.com Social
  16. fb.com Other
  17. academia.edu Reference
  18. amap.com Travel
  19. emag.ro E-commerce
  20. tjk.org Other
  21. aka.ms Other
  22. sportfilm800.com News & media
  23. rocketmoney.dev Other
  24. qcloud.com Other
  25. blackhub.team Other
  26. adrta.com Other
  27. marketwatch.com E-commerce
  28. merkur.de Other
  29. lnkd.in Other
  30. sogou.com Other
  31. salesforceliveagent.com Other
  32. sedoparking.com Other

Sites that block meta-externalads on some paths (5)

  1. reuters.com News & media
  2. capcut.com Other
  3. disneyplus.com Entertainment
  4. protothema.gr News & media
  5. hulu.com Entertainment

Trend

The daily series for meta-externalads starts on 2026-10-01; a trend appears here as days accumulate.

Latest changes

No site changed its meta-externalads rule in the latest daily run.

Block or allow meta-externalads

User-agent: meta-externalads
Disallow: /

Replace Disallow: / with Allow: / to let it in. A site that blocks training crawlers but wants to be cited in AI answers usually keeps the search and user-triggered crawlers allowed.

FAQ

How many websites block meta-externalads?
As of 2026-10-01, 32 of the 853 popular websites whose robots.txt we could read (3.8%) block meta-externalads, Meta's ads review crawler, on the home page; 5 more block it on some paths. Among the top 100 sites: 9.6%.
What is meta-externalads?
meta-externalads is Meta's ads review crawler. It is the #28 most blocked of the 29 AI crawlers in the index.
How do I block meta-externalads in robots.txt?
Add these lines to https://<your-site>/robots.txt: "User-agent: meta-externalads" followed by "Disallow: /". To allow it, use "Allow: /" instead. Well-behaved crawlers read robots.txt before fetching pages; firewall rules are needed to stop crawlers that ignore it.
How do I check whether my site blocks meta-externalads?
Use the free AI crawler checker at tools.yukai.uk/free/ai-crawler-checker: it shows the status of meta-externalads and 28 other AI crawlers with the exact robots.txt rule.

Other AI crawlers

Also from Meta: Meta-ExternalAgent (14.4%), meta-webindexer (6.3%), meta-externalfetcher (8.7%).