theoremoftheday.org

.org crawl

First seen 2026-04-14 · Last seen 2026-05-08 · ok HTTP/1.1 200 528 ms crawled 2026-05-08

GB · 80.82.116.220 · AS41357 34SP.com Limited

Reputation 89/100 weak security headers dmarc monitor-only

Classifying

HTML metadata

Title
Theorem of the Day
Feeds

Technology

Server
Apache

Third-party hosts loaded (1)

  • www.geoplugin.net×1

Contact

Email

Registration

Registrar
Easyspace Limited
Created
2007-07-05
Expires
2027-07-05 411 days left
Updated
2025-07-10
Name servers
  • ns.34sp.com
  • ns2.34sp.com

DNS records live

NS
  • ns.34sp.com
  • ns2.34sp.com
MX
  • 10 mx3.34sp.com
  • 10 mx4.34sp.com

Email authentication weak

SPF
not published
DMARC
v=DMARC1; p=none
policy: none (monitoring only)
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-03 to 2026-07-02
Expires in 42 days

HTTP security headers

Header hygiene 30/100 Checked live page: https://theoremoftheday.org/

findings
  • missing HSTS
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (19)

Linked from (1)