Outbrain Crawler

Outbrain publishes crawler IP ranges on its advertiser help page for URL validation. Prefer that live page as source of truth — ranges can change.

Autonomous systems

AS22075

Outbrain crawler prefixes

Documentation

Official crawler CIDRs from Outbrain’s help documentation.

https://www.outbrain.com/help/advertisers/invalid-url/

Published prefixes

38.104.143.176/28
38.133.127.0/24
50.31.142.0/24
64.74.236.0/24
64.202.112.0/24
66.150.103.0/24
66.225.223.0/24
70.42.32.0/24
165.254.24.192/27
167.88.57.0/24
192.82.210.0/24
192.82.211.0/24