You saw AS32934 on an IP, likely from something claiming to be the Facebook crawler, and want to confirm it. AS32934 is operated by Meta, the company behind Facebook and Instagram. This page explains what the ASN covers and how to verify its traffic.
What is AS32934?
AS32934 is the Autonomous System Number operated by Meta Platforms (Facebook). It carries Meta's services and crawlers, so a route from AS32934 belongs to Meta's network. For the concept, see what an ASN is.
- ASN: AS32934
- Operator: Meta Platforms, Inc. (Facebook)
- Type: Content / hosting (Meta services and crawlers)
- Crawler: facebookexternalhit originates here
What runs on AS32934?
Meta's own infrastructure: Facebook, Instagram, and the facebookexternalhit crawler that fetches link previews when someone shares a URL. When a real Facebook or Instagram share hits your site to build a preview card, that request comes from AS32934.
Why AS32934 matters for verification
Like Googlebot, the Facebook crawler is impersonated. A request with the facebookexternalhit user-agent from AS32934 is plausibly real; the same user-agent from a hosting ASN like OVH or Hetzner is fake. The ASN is the quick authenticity check, the same approach described in verifying Googlebot IPs.
Should you block AS32934?
No. Blocking it would break Facebook and Instagram link previews for your content and cut off legitimate Meta services. Use the ASN to verify Meta traffic, not to block it.
How to check an IP against AS32934
Look up the IP's ASN with Abstract's free ASN Lookup tool, or use the IP Intelligence API to return the ASN and type in one request so your filter can confirm real Meta crawler traffic and reject impostors. This supports accurate bot detection.
Frequently Asked Questions
What is AS32934?
AS32934 is the Autonomous System Number operated by Meta (Facebook). It carries Facebook, Instagram, and the facebookexternalhit crawler.
Is the Facebook crawler on AS32934?
Yes. Genuine facebookexternalhit requests originate from Meta's network, AS32934. The same user-agent from a hosting ASN is an impostor.
Why is AS32934 hitting my site?
Usually to build link-preview cards when someone shares your URL on Facebook or Instagram, which triggers the facebookexternalhit crawler from AS32934.
Should I block AS32934?
No. Blocking it breaks Facebook and Instagram link previews and cuts off Meta services. Verify the traffic by ASN instead of blocking.
How do I check if an IP is Meta?
Enter it into Abstract's ASN Lookup tool or call the IP Intelligence API to confirm whether the ASN is AS32934.
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