Meta-ExternalAds
Meta-ExternalAds is a crawler operated by Meta, the company behind Facebook and Instagram. It visits your website when an advertiser links to it in an ad or when someone shares your URL on Meta platforms. Its job is to check that the content complies with advertising policies and to build those visual cards with an image, title, and description that appear when a link is shared. It is not designed to train AI models or improve your ranking in AI tools like ChatGPT or Gemini, but blocking it can prevent your ads from passing automated review or cause your links on Facebook to appear without a preview.
- User-agent
meta-externaladsmeta-externalads/1.1 (+https://developers.facebook.com/docs/sharing/webmasters/crawler)- Does it respect robots.txt?
- Partially
- Official documentation
- https://developers.facebook.com/docs/sharing/webmasters/web-crawlers/
How to allow it in your robots.txt
User-agent: meta-externalads
Allow: /How to block it (not recommended)
User-agent: meta-externalads
Disallow: /Frequently asked questions
Should I block Meta-ExternalAds?
It depends on whether you run ads on Meta or share links from your website on Facebook or Instagram. If you do, blocking it may cause your ads to fail automated review or your shared URLs to appear without an image or description. If you do not use Meta platforms at all, blocking it has no practical impact.
Does it affect my visibility in AI tools like ChatGPT or Gemini?
Not directly. This bot does not feed AI model training or power AI-driven search. Its role is advertising review and link preview generation within the Meta ecosystem. If your goal is to get your business mentioned in ChatGPT or Gemini, this bot is not the one that influences that.
How can I tell if Meta-ExternalAds is visiting my site?
Search for meta-externalads in your server logs or in your hosting or CDN dashboard, for example in Cloudflare. Every visit is recorded with that name in the user-agent field. You are most likely to see it when someone shares one of your links on Facebook or when an ad pointing to your site goes through automated review.