YLT Chrome
Performance analyzer evaluating front-end quality and optimization recommendations
About this crawler
YLT Chrome is a web crawler identified by the regular-expression pattern YLT Chrome in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block YLT Chrome 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
- YLT Chrome
- Pattern
YLT Chrome- Tags
- monitoring
- Reference
- https://yellowlab.tools/
- Added
- 2026/04/17
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) YLT Chrome/85.0.4183.121 Safari/537.36
Block this crawler
robots.txt — disallow YLT Chrome:
User-agent: YLT Chrome
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} YLT Chrome [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "YLT Chrome") {
return 403;
}
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