Google · Indexing

Googlebot

Identify Googlebot by its user agent. Check request identity, review robots.txt controls and track visits in Aiola Analytics.

Download Aiola AI crawler directory

Key facts

User-agent token: Googlebot

Indexing: Crawled for AI or search indexing.

Google publishes official IP ranges; verify requests against them.

What Googlebot is

Googlebot crawls and renders pages for Google Search indexing, including surfaces that supply search results to AI features. Aiola classifies it as indexing because it supports a searchable retrieval index.

In Aiola's taxonomy, Indexing means crawled for ai or search indexing.

Googlebot user agent

Look for the match token inside the complete HTTP User-Agent header. Tokens can be spoofed, so use the network checks below for authentication.

Full example User-Agent

Mozilla/5.0 (compatible; Googlebot/2.1; +http://www.google.com/bot.html)

Case-insensitive match token

Googlebot

Official IP ranges

Google publishes an official IP range list. This cached snapshot contains 317 CIDR prefixes, last fetched 2026-10-23. Open the live source

Official IP range snapshot

192.178.4.0/27
192.178.4.128/27
192.178.4.160/27
192.178.4.192/27
192.178.4.224/27
192.178.4.32/27
192.178.4.64/27
192.178.4.96/27
192.178.5.0/27
192.178.6.0/27
192.178.6.128/27
192.178.6.160/27
192.178.6.192/27
192.178.6.224/27
192.178.6.32/27
192.178.6.64/27
192.178.6.96/27
192.178.7.0/27
192.178.7.128/27
192.178.7.160/27
192.178.7.192/27
192.178.7.224/27
192.178.7.32/27
192.178.7.64/27
192.178.7.96/27
2001:4860:4801:10::/64
2001:4860:4801:11::/64
2001:4860:4801:12::/64
2001:4860:4801:13::/64
2001:4860:4801:14::/64
2001:4860:4801:15::/64
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2001:4860:4801:19::/64
2001:4860:4801:1a::/64
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2001:4860:4801:27::/64
2001:4860:4801:28::/64
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2001:4860:4801:2c::/64
2001:4860:4801:2d::/64
2001:4860:4801:2e::/64
2001:4860:4801:2f::/64
2001:4860:4801:30::/64
2001:4860:4801:31::/64
2001:4860:4801:32::/64
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2001:4860:4801:3a::/64
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2001:4860:4801:3c::/64
2001:4860:4801:3d::/64
2001:4860:4801:3e::/64
2001:4860:4801:3f::/64
2001:4860:4801:40::/64
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2001:4860:4801:50::/64
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2001:4860:4801:62::/64
2001:4860:4801:63::/64
2001:4860:4801:64::/64
2001:4860:4801:65::/64
2001:4860:4801:66::/64
2001:4860:4801:67::/64
2001:4860:4801:68::/64
2001:4860:4801:69::/64
2001:4860:4801:6a::/64
2001:4860:4801:6b::/64
2001:4860:4801:6c::/64
2001:4860:4801:6d::/64
2001:4860:4801:6e::/64
2001:4860:4801:6f::/64
2001:4860:4801:70::/64
2001:4860:4801:71::/64
2001:4860:4801:72::/64
2001:4860:4801:73::/64
2001:4860:4801:74::/64
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2001:4860:4801:7a::/64
2001:4860:4801:7b::/64
2001:4860:4801:7c::/64
2001:4860:4801:7d::/64
2001:4860:4801:7e::/64
2001:4860:4801:7f::/64
2001:4860:4801:80::/64
2001:4860:4801:81::/64
2001:4860:4801:82::/64
2001:4860:4801:83::/64
2001:4860:4801:84::/64
2001:4860:4801:85::/64
2001:4860:4801:86::/64
2001:4860:4801:87::/64
2001:4860:4801:88::/64
2001:4860:4801:90::/64
2001:4860:4801:91::/64
2001:4860:4801:92::/64
2001:4860:4801:93::/64
2001:4860:4801:94::/64
2001:4860:4801:95::/64
2001:4860:4801:96::/64
2001:4860:4801:97::/64
2001:4860:4801:a0::/64
2001:4860:4801:a1::/64
2001:4860:4801:a2::/64
2001:4860:4801:a3::/64
2001:4860:4801:a4::/64
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2001:4860:4801:c::/64
2001:4860:4801:f::/64
34.100.182.96/28
34.101.50.144/28
34.118.254.0/28
34.118.66.0/28
34.126.178.96/28
34.146.150.144/28
34.147.110.144/28
34.151.74.144/28
34.152.50.64/28
34.154.114.144/28
34.155.98.32/28
34.165.18.176/28
34.175.160.64/28
34.176.130.16/28
34.22.85.0/27
34.64.82.64/28
34.65.242.112/28
34.80.50.80/28
34.88.194.0/28
34.89.10.80/28
34.89.198.80/28
34.96.162.48/28
35.247.243.240/28
66.249.64.0/27
66.249.64.128/27
66.249.64.160/27
66.249.64.192/27
66.249.64.224/27
66.249.64.32/27
66.249.64.64/27
66.249.64.96/27
66.249.65.0/27
66.249.65.128/27
66.249.65.160/27
66.249.65.192/27
66.249.65.224/27
66.249.65.32/27
66.249.65.64/27
66.249.65.96/27
66.249.66.0/27
66.249.66.128/27
66.249.66.160/27
66.249.66.192/27
66.249.66.224/27
66.249.66.32/27
66.249.66.64/27
66.249.66.96/27
66.249.67.0/27
66.249.67.32/27
66.249.67.64/27
66.249.68.0/27
66.249.68.128/27
66.249.68.160/27
66.249.68.192/27
66.249.68.224/27
66.249.68.32/27
66.249.68.64/27
66.249.68.96/27
66.249.69.0/27
66.249.69.128/27
66.249.69.160/27
66.249.69.192/27
66.249.69.224/27
66.249.69.32/27
66.249.69.64/27
66.249.69.96/27
66.249.70.0/27
66.249.70.128/27
66.249.70.160/27
66.249.70.192/27
66.249.70.224/27
66.249.70.32/27
66.249.70.64/27
66.249.70.96/27
66.249.71.0/27
66.249.71.128/27
66.249.71.160/27
66.249.71.192/27
66.249.71.224/27
66.249.71.32/27
66.249.71.64/27
66.249.71.96/27
66.249.72.0/27
66.249.72.128/27
66.249.72.160/27
66.249.72.192/27
66.249.72.224/27
66.249.72.32/27
66.249.72.64/27
66.249.72.96/27
66.249.73.0/27
66.249.73.128/27
66.249.73.160/27
66.249.73.192/27
66.249.73.224/27
66.249.73.32/27
66.249.73.64/27
66.249.73.96/27
66.249.74.0/27
66.249.74.128/27
66.249.74.160/27
66.249.74.192/27
66.249.74.224/27
66.249.74.32/27
66.249.74.64/27
66.249.74.96/27
66.249.75.0/27
66.249.75.128/27
66.249.75.160/27
66.249.75.192/27
66.249.75.224/27
66.249.75.32/27
66.249.75.64/27
66.249.75.96/27
66.249.76.0/27
66.249.76.128/27
66.249.76.160/27
66.249.76.192/27
66.249.76.224/27
66.249.76.32/27
66.249.76.64/27
66.249.76.96/27
66.249.77.0/27
66.249.77.128/27
66.249.77.160/27
66.249.77.192/27
66.249.77.224/27
66.249.77.32/27
66.249.77.64/27
66.249.77.96/27
66.249.78.0/27
66.249.78.128/27
66.249.78.160/27
66.249.78.192/27
66.249.78.224/27
66.249.78.32/27
66.249.78.64/27
66.249.78.96/27
66.249.79.0/27
66.249.79.128/27
66.249.79.160/27
66.249.79.192/27
66.249.79.224/27
66.249.79.32/27
66.249.79.64/27

Verify a Googlebot request

For Googlebot, compare the source IP from your trusted edge or server against Google’s current published prefixes.

Test one CIDR in Python (replace REQUEST_IP)

python3 -c 'import ipaddress; print(ipaddress.ip_address("REQUEST_IP") in ipaddress.ip_network("192.178.4.0/27"))'

Test every current prefix in the vendor feed and re-fetch it regularly. This cached snapshot is evidence of publication, not a permanent firewall list.

Control Googlebot with robots.txt

Google documents crawler controls for this bot family. Robots.txt can direct cooperative crawling, but it cannot prove that a request is authentic.

Allow Googlebot

User-agent: Googlebot
Allow: /

Block Googlebot

User-agent: Googlebot
Disallow: /

Read official crawler documentation

Aiola Analytics

See every Googlebot visit on your site

Aiola tracks 70 AI, search and link-preview crawlers next to your human traffic. See when Googlebot arrives, which pages it requests and how that changes over time. Hosted Analytics needs Pro or a trial.

Download Aiola Set up bot tracking

Aiola Analytics showing AI crawler visits by bot and page

Common questions

Match the case-insensitive token “Googlebot” in the User-Agent header. A matching header alone does not authenticate the sender.

Google publishes an IP range list, and this page snapshots 317 CIDR prefixes fetched on 2026-10-23. Match the source IP against the current vendor feed before trusting it.

Use a specific “Googlebot” group for crawler-specific rules. Review the policy details below: robots.txt is a request to compliant crawlers, not an access-control system.

Build, ship and fix in one app

Errors, user feedback, GitHub and analytics live next to your coding agents in one desktop app. Every issue becomes a task an agent can take.

Download Aiola

What Googlebot is

Googlebot user agent

Official IP ranges

Verify a Googlebot request

Control Googlebot with robots.txt

See every Googlebot visit on your site

Common questions

What is Googlebot?

What user-agent token identifies Googlebot?

Can I verify Googlebot by IP address?

Can robots.txt block Googlebot?

Build, ship and fix in one app