regexr.com
RegExr: Learn, Build, & Test RegEx
Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2025-09-10 |
| Last crawled | 2026-06-15 |
| IPv4 | 172.67.191.157 |
| IPv6 | 2606:4700:3037::ac43:bf9d |
| Network | AS13335 Cloudflare, Inc. · United States |
| CNAME | regexr.com |
| Server | cloudflare |