indexo.dev

regexper.com

.com crawl

First seen 2026-04-11 · Last seen 2026-05-18 · ok HTTP/1.1 200 744 ms crawled 2026-05-18

US · 151.101.65.195 · AS54113 Fastly, Inc.

Reputation 100/100

Classifying

HTML metadata

Title
Regexper
Description
Regular expression visualizer using railroad diagrams

Technology

Fonts
  • Google Fonts

Third-party hosts loaded (2)

  • fonts.googleapis.com×1
  • licensebuttons.net×1

Registration

Registrar
Gandi SAS
Created
2013-01-02
Expires
2027-01-02 227 days left
Updated
2025-12-01
Name servers
  • ns-13-c.gandi.net
  • ns-67-b.gandi.net
  • ns-9-a.gandi.net

DNS records live

NS
  • ns-13-c.gandi.net
  • ns-67-b.gandi.net
  • ns-9-a.gandi.net
MX
  • 60 mail.regexper.com
TXT
  • keybase-site-verification=bTZuAGwpD_X1tHXBQnBKWbkB8OI8M87UABrGzDr7x6s

Email authentication strong

SPF
not published
DMARC
v=DMARC1; p=reject; rua=mailto:admin@jeffavallone.com; ruf=mailto:admin@jeffavallone.com; adkim=s; aspf=s; fo=1; ri=86400
policy: reject (enforced)
DKIM
  • dkim: v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0KQO+W5n3vYMtD16bhQx52WmQ+cEe+X9XjSniO76MMFggnujeWJxRcn5AJHJADkz3ysvvEe3EPYlN2…
selectors probed

Certificate (current)

WR3
from 2026-03-28 to 2026-06-26
Expires in 38 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://regexper.com/

present
  • strict-transport-security
findings
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
strict-transport-security
max-age=31556926

Links to (2)

Linked from (2)