indexo.dev

mathematicallycorrect.com

.com crawl

First seen 2026-04-21 · Last seen 2026-05-18 · ok HTTP/1.1 200 2709 ms crawled 2026-05-14

FR · 51.195.223.140 · AS16276 OVH SAS

Reputation 70/100 wrong cert weak security headers

Classifying

HTML metadata

Title
2 plus 2: The Home of Mathematically Correct
Description
<strong>Devoted to the concerns raised by parents and scientists about the invasion of our schools by the New-New Math and the need to restore basic skills to math education.

Technology

Server
Apache
CMS
Gatsby

Registration

Registrar
Internet Domain Service BS Corp
Created
1998-05-20
Expires
2027-05-19 365 days left
Updated
2026-05-05
Name servers
  • v1.48hourfilm.de
  • v2.48hourfilm.de

DNS records live

NS
  • v1.48hourfilm.de
  • v2.48hourfilm.de

Email authentication no MX

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

Certificate (current) wrong cert

local
from 2026-01-09 to 2029-01-08
Expires in 965 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 35/100 Checked over plain HTTP: http://www.mathematicallycorrect.com/

findings
  • checked over plain HTTP
  • missing Content Security Policy
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy

Links to (14)

Linked from (2)