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URLTester
URL testing tool
About this crawler
URLTester is a web crawler identified by the regular-expression pattern URLTester in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block URLTester 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
- URLTester
- Pattern
URLTester- Tags
- monitoring
- Added
- 2026/05/09
- Instances
- 2 known sample(s)
Sample User-Agent strings
URLTester/1 CFNetwork/974.1 Darwin/18.0.0 (x86_64)
URLTester/1 CFNetwork/975.0.3 Darwin/18.2.0 (x86_64)
Block this crawler
robots.txt — disallow URLTester:
User-agent: URLTester
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} URLTester [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "URLTester") {
return 403;
}
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