PubMaticCrawler
PubMatic ads.txt verification crawler
About this crawler
PubMaticCrawler is a web crawler identified by the regular-expression pattern PubMatic[^/]*Crawler in the User-Agent request header. It is categorised as advertising. Use the regex above to detect, log, allow, or block PubMaticCrawler traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.065%
Technical details
- Name
- PubMaticCrawler
- Pattern
PubMatic[^/]*Crawler- Tags
- advertising
- Reference
- https://pubmatic.com/blog/introducing-crawler-2-0-the-next-generation-ads-txt-crawler-at-pubmatic/
- Added
- 2026/05/03
- Instances
- 1 known sample(s)
Sample User-Agent strings
PubMatic Crawler Bot
Block this crawler
robots.txt — disallow PubMaticCrawler:
User-agent: PubMaticCrawler
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} PubMatic[^/]*Crawler [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "PubMatic[^/]*Crawler") {
return 403;
}
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