indexo.dev

transum.org

.org crawl

First seen 2026-05-06 · Last seen 2026-05-13 · ok HTTP/1.1 200 576 ms crawled 2026-05-13

US · 160.153.246.128 · AS21499 Host Europe GmbH

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Transum
Description
A large collection of free interactive online activity supporting the teaching and learning of Mathematics.
Canonical
https://www.transum.org

Open Graph

url
https://www.transum.org
title
Transum
site name
Transum
description
A large collection of free interactive online activity supporting the teaching and learning of Mathematics.

Technology

Server
Microsoft-IIS
Analytics
  • Google Tag Manager
Fonts
  • Google Fonts

Third-party hosts loaded (4)

  • fonts.googleapis.com×1
  • platform-api.sharethis.com×1
  • www.googletagmanager.com×1
  • www.kidsafeseal.com×1

Registration

Registrar
GoDaddy.com, LLC
Created
2004-04-16
Expires
2030-04-16 1426 days left
Updated
2024-07-03
Name servers
  • ns41.domaincontrol.com
  • ns42.domaincontrol.com

DNS records live

NS
  • ns41.domaincontrol.com
  • ns42.domaincontrol.com
MX
  • 0 transum-org.mail.protection.outlook.com
TXT
  • NETORGFT8930802.onmicrosoft.com

Email authentication weak

SPF
v=spf1 ip4:160.153.246.128 include:secureserver.net include:spf.protection.outlook.com ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-11 to 2026-07-10
Expires in 50 days

Full certificate history on crt.sh ↗

HTTP security headers

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

present
  • content-security-policy
findings
  • missing HSTS
  • missing frame protection
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
content-security-policy
upgrade-insecure-requests;

Links to (1)

Linked from (1)