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Googlebot publishes 317 IP ranges.

Last updated 5 Nov 2026 from Googlebot’s own list (file dated 2026-11-04T15:45:59.000000)

Short answer

Google publishes the addresses Googlebot crawls from in googlebot.json. Google’s own guide also verifies a crawler by a reverse DNS lookup ending in googlebot.com or google.com.

IPv4 prefixes170
IPv6 prefixes147
Sub-listsNone
Provider’s file date2026-11-04T15:45:59.000000
Fetched by peekip5 Nov 2026
StatusFetched OK

What it’s for

Use it to tell the real Googlebot from scrapers that copy its user agent.

Prefixes

PrefixRegion / locationService
192.178.4.0/27—Googlebot
192.178.4.128/27—Googlebot
192.178.4.160/27—Googlebot
192.178.4.192/27—Googlebot
192.178.4.224/27—Googlebot
192.178.4.32/27—Googlebot
192.178.4.64/27—Googlebot
192.178.4.96/27—Googlebot
192.178.5.0/27—Googlebot
192.178.6.0/27—Googlebot
192.178.6.128/27—Googlebot
192.178.6.160/27—Googlebot
192.178.6.192/27—Googlebot
192.178.6.224/27—Googlebot
192.178.6.32/27—Googlebot
192.178.6.64/27—Googlebot
192.178.6.96/27—Googlebot
192.178.7.0/27—Googlebot
192.178.7.128/27—Googlebot
192.178.7.160/27—Googlebot
192.178.7.192/27—Googlebot
192.178.7.224/27—Googlebot
192.178.7.32/27—Googlebot
192.178.7.64/27—Googlebot
192.178.7.96/27—Googlebot
34.100.182.96/28—Googlebot
34.101.50.144/28—Googlebot
34.118.254.0/28—Googlebot
34.118.66.0/28—Googlebot
34.126.178.96/28—Googlebot
34.146.150.144/28—Googlebot
34.147.110.144/28—Googlebot
34.151.74.144/28—Googlebot
34.152.50.64/28—Googlebot
34.154.114.144/28—Googlebot
34.155.98.32/28—Googlebot
34.165.18.176/28—Googlebot
34.175.160.64/28—Googlebot
34.176.130.16/28—Googlebot
34.22.85.0/27—Googlebot
34.64.82.64/28—Googlebot
34.65.242.112/28—Googlebot
34.80.50.80/28—Googlebot
34.88.194.0/28—Googlebot
34.89.10.80/28—Googlebot
34.89.198.80/28—Googlebot
34.96.162.48/28—Googlebot
35.247.243.240/28—Googlebot
66.249.64.0/27—Googlebot
66.249.64.128/27—Googlebot
Showing 50 of 317 prefixes All prefixes (CSV)

What changed

No prefixes added or removed since we started tracking this list. Changes appear here the day after the provider publishes them.

Allowlist formats

nginx (first 5 prefixes)
allow 192.178.4.0/27;
allow 192.178.4.128/27;
allow 192.178.4.160/27;
allow 192.178.4.192/27;
allow 192.178.4.224/27;
deny all;
iptables (first 5 prefixes)
iptables -A INPUT -s 192.178.4.0/27 -j ACCEPT
iptables -A INPUT -s 192.178.4.128/27 -j ACCEPT
iptables -A INPUT -s 192.178.4.160/27 -j ACCEPT
iptables -A INPUT -s 192.178.4.192/27 -j ACCEPT
iptables -A INPUT -s 192.178.4.224/27 -j ACCEPT

Generate the full list from the CSV, and refresh it on a schedule: providers add and retire prefixes often.

Sources

  1. Googlebot: published IP ranges · checked 5 Nov 2026
  2. Googlebot documentation