mabl

browser-automation mabl

mabl cloud test automation platform for web testing

About this crawler

mabl is a web crawler identified by the regular-expression pattern mabl in the User-Agent request header. It is categorised as browser-automation. Use the regex above to detect, log, allow, or block mabl traffic in your web server, CDN edge rules, or robots.txt.

Block-rate · top 25k sites

No block-rate data for this crawler.

Technical details

Name
mabl
Pattern
mabl
Tags
browser-automation
Reference
https://help.mabl.com/hc/en-us/articles/18967650734228
Added
2026/05/02
rDNS suffixes
.mabl.com
Instances
0 known sample(s)

rDNS verification (FCrDNS)

Verify a request is genuinely mabl with forward-confirmed reverse DNS: the client IP's PTR record must end in one of the suffixes below and a forward A/AAAA lookup of that hostname must return the same IP. UA strings alone are spoofable; FCrDNS is not.

Sample User-Agent strings

no public sample user-agents recorded.

Block this crawler

robots.txt — disallow mabl:

User-agent: mabl Disallow: /

Apache .htaccess — return 403:

RewriteEngine On RewriteCond %{HTTP_USER_AGENT} mabl [NC] RewriteRule .* - [F,L]

Nginx — return 403 inside a server block:

if ($http_user_agent ~* "mabl") { return 403; }
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