Anthropic · Claude

Claude-SearchBot

Indexes pages so Claude can find and cite them. Here is how to recognise it, verify it, and allow or block it.

Company
Anthropic
Product
Claude
Why it visits
Indexing for AI / search answers
How to verify
Published IP list
User-agent contains
Claude-SearchBot

How to tell a real Claude-SearchBot from a fake

  1. The user-agent contains Claude-SearchBot. On its own this proves nothing: fakes copy it.
  2. The visit’s IP address is inside Anthropic’s published list (anthropic, below). If it isn’t, it’s a fake.

Check a Claude-SearchBot visit

IP ranges: anthropic

38 ranges · updated 12 Oct 2026 · source claude.com

Show all 38 ranges
216.73.216.0/22 34.162.230.222/32 34.162.244.71/32 34.162.191.81/32 34.150.241.79/32 34.85.172.162/32 35.245.175.129/32 34.182.222.37/32 34.186.108.163/32 35.245.89.239/32 34.182.161.143/32 34.182.218.27/32 34.182.220.85/32 34.11.34.31/32 34.182.140.95/32 136.107.176.208/32 34.182.226.151/32 34.182.226.221/32 35.221.29.174/32 34.182.225.167/32 40.124.101.48/28 20.102.46.224/28 20.64.57.208/28 16.58.26.69/32 18.225.238.228/32 18.227.226.255/32 160.79.106.128/28 160.79.106.16/28 34.162.86.102/32 136.79.143.251/32 136.83.20.215/32 34.162.111.78/32 34.162.90.102/32 34.162.27.34/32 34.152.124.140/32 34.153.21.190/32 34.186.252.4/32 34.162.153.71/32

Recent changes to these ranges

No changes recorded yet. When a company adds or removes ranges, it shows up here (lists are checked every day).

Allow or block Claude-SearchBot in robots.txt

Block it everywhere:

User-agent: Claude-SearchBot Disallow: /

Allow it everywhere:

User-agent: Claude-SearchBot Allow: /

Fake bots ignore robots.txt: block them by address in your firewall instead.