ProbelySPDR
Security testing crawler identifying web vulnerabilities
About this crawler
ProbelySPDR is a web crawler identified by the regular-expression pattern ProbelySPDR\/ in the User-Agent request header. It is categorised as scanner. Use the regex above to detect, log, allow, or block ProbelySPDR 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
- ProbelySPDR
- Pattern
ProbelySPDR\/- Tags
- scanner
- Reference
- https://snyk.io/dast-api-web/sos/
- Added
- 2026/04/17
- Instances
- 1 known sample(s)
Sample User-Agent strings
Mozilla/5.0 (compatible; +https://probely.com/sos) ProbelySPDR/0.1.0
Block this crawler
robots.txt — disallow ProbelySPDR:
User-agent: ProbelySPDR
Disallow: /
Apache .htaccess — return 403:
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} ProbelySPDR\/ [NC]
RewriteRule .* - [F,L]
Nginx — return 403 inside a server block:
if ($http_user_agent ~* "ProbelySPDR\\/") {
return 403;
}
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