indexo.dev

planetmath.org

.org crawl

First seen 2026-04-14 · Last seen 2026-05-07 · ok HTTP/1.1 200 665 ms crawled 2026-05-07

CA · 129.97.206.129 · AS12093 University of Waterloo

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
PlanetMath.org

Technology

Server
Apache

Third-party hosts loaded (1)

  • sidecar.gitter.im×1

Social

Registration

Registrar
GoDaddy.com, LLC
Created
2000-12-05
Expires
2026-12-05 199 days left
Updated
2026-01-19
Name servers
  • ns.dominia.org
  • ns2.dominia.org

DNS records live

NS
  • ns.dominia.org
  • ns2.dominia.org
MX
  • 10 planetmath.org

Email authentication weak

SPF
not published
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R13
from 2026-05-07 to 2026-08-05
Expires in 78 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 50/100 Checked live page: https://planetmath.org/

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=63072000; includeSubDomains; preload

Links to (2)

Linked from (2)