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Website Information
| Domain | regex101.com |
| Title | regex101: build, test, and debug regex |
| Description | Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust. |
| Keyword | regex,regex tester,regular expression,debugger,pcre,php,golang,java,javascript,python,.net,c#,rust |
Network & Domain Data
HTTP 200| URL | https://regex101.com |
| HTTP | HTTP/2 200 |
| server | nginx |
| date | Thu, 16 Jul 2026 03:25:22 GMT |
| content-type | text/html; charset=utf-8 |
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| x-ssr-cache | hit |
| set-cookie | regex101=pbp-EC0xH4Wl99aScWJEzJ6TqNaVIcgA.QjbmzVUSJOBahealjQcY0q%2F5qfOGHFbKeZiHqMVesyQ; Domain=regex101.com; Path=/; Expires=Sat, 15 Aug 2026 03:25:22 GMT; HttpOnly; Secure |
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| content-security-policy | default-src 'self' 'unsafe-eval' http: https: data: blob: 'unsafe-inline' |
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| cross-origin-opener-policy | same-origin |
| cross-origin-embedder-policy | credentialless |
| cross-origin-opener-policy | same-origin |
| cross-origin-embedder-policy | require-corp |
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| Subject (CN) | regex101.com |
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| Valid To | 2026-09-23 23:35:38 |
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| URL of the ICANN Whois Inaccuracy Complaint Form | https://www.icann.org/wicf/ |
| >>> Last update of whois database | 2026-06-19T07:18:03Z <<< |
| For more information on Whois status codes, please visit https | //icann.org/epp |
| NOTICE | The expiration date displayed in this record is the date the |
| TERMS OF USE | You are not authorized to access or query our Whois |
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| Domain name | regex101.com |
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| For more information on Whois status codes, please visit https | //icann.org/epp |