NetLyzer FastProbe
NetLyzer speed and network probe
About this crawler
NetLyzer FastProbe is a web crawler identified by the regular-expression pattern NetLyzer FastProbe in the User-Agent request header. It is categorised as monitoring. Use the regex above to detect, log, allow, or block NetLyzer FastProbe traffic in your web server, CDN edge rules, or robots.txt.
Block-rate · top 25k sites
0.26%
Technical details
- Name
- NetLyzer FastProbe
- Pattern
NetLyzer FastProbe- Tags
- monitoring
- Reference
- http://netlyzer.com/
- Added
- 2026/05/09
- Instances
- 1 known sample(s)
Sample User-Agent strings
NetLyzer FastProbe (See http://netlyzer.com/report/www.domain.com for info)
Block this crawler
robots.txt — disallow NetLyzer FastProbe:
User-agent: NetLyzer FastProbe
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} NetLyzer FastProbe [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "NetLyzer FastProbe") {
return 403;
}
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