indexo.dev

regular-expressions.info

.info crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 1880 ms crawled 2026-05-18

US · 216.92.20.37 · AS7859 pair Networks

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Regular-Expressions.info - Regex Tutorial, Examples and Reference - Regexp Patterns
Description
At Regular-Expressions.info you will find a wide range of in-depth information about a powerful search pattern language called regular expressions.
Language
en
Canonical
https://www.regular-expressions.info/
Feeds

Technology

Server
Apache

Registration

Registrar
NameCheap, Inc.
Created
2002-12-26
Expires
2035-12-26 3506 days left
Updated
2026-01-24
Name servers
  • ns0000.ns0.com
  • dns4.pair.com

DNS records live

NS
  • dns4.pair.com
  • ns0000.ns0.com
MX
  • 50 mailwash62.pair.com

Email authentication weak

SPF
v=spf1 include:webmail.pair.com include:relay.pair.com include:pairlist.com a:vps507.pairvps.com a:mailwash62.pair.com -all
strict (-all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-05-02 to 2026-07-31
Expires in 72 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 80/100 Checked live page: https://www.regular-expressions.info/

present
  • strict-transport-security
  • content-security-policy
  • x-content-type-options
findings
  • missing frame protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-content-type-options
nosniff
content-security-policy
frame-ancestors 'self';
strict-transport-security
max-age=31536000

Links to (2)

Linked from (1)