Centinel AnalyticaPubMatic Crawler Bot
PubMatic Crawler Bot is operated by PubMatic, a programmatic advertising SSP. It fetches ads.txt / sellers.json files and other publisher-side metadata to validate authorised sellers and combat domain spoofing across the ad ecosystem.
At a glance
- Operator: PubMatic
- Type: Advertising
How Centinel checks it
- User agent: The request calls itself this crawler. Anyone can send the same string.
- IP ranges: The operator publishes the addresses it crawls from, and Centinel checks the client address against that list.
A request that passes one of these checks is PubMatic Crawler Bot itself. One that only matches the user agent is reported as unverified. The match tokens, verification domains, and address feeds are not published here.
Allowing or blocking it
The crawler object in the /validate response sets access_allowed to true only for a verified source that your tenant allowlists. A policy rule can allow or block this crawler by its category, Advertising.