indexo.dev

explainthatstuff.com

.com crawl

First seen 2026-04-17 · Last seen 2026-05-12 · ok HTTP/1.1 200 2686 ms crawled 2026-05-12

US · 209.142.64.143 · AS40476 Scala Hosting LLC

Reputation 92/100 no dmarc policy

Classifying

HTML metadata

Title
Explain that Stuff
Description
A collection of FREE, easy-to-understand science, technology, and how-it-works articles for the whole family!
Canonical
https://www.explainthatstuff.com/

Open Graph

url
http://www.explainthatstuff.com/
title
Explain that stuff! Science and technology made simple
site name
Explain that Stuff
description
We make science and technology easy to understand.

Technology

Server
Apache

Third-party hosts loaded (2)

  • cse.google.com×2
  • www.facebook.com×1

Social

Contact

Address
Garfield House, Garfield Lane, Swanage, BH19 3HJ, Dorset, BH, United Kingdom

Registration

Registrar
Tucows Domains Inc.
Created
2006-04-22
Expires
2027-04-22 338 days left
Updated
2025-07-13
Name servers
  • ns0.zen.co.uk
  • ns1.zen.co.uk

DNS records live

NS
  • ns0.zen.co.uk
  • ns1.zen.co.uk
MX
  • 10 mail.explainthatstuff.com
TXT
  • e4ghpe2dvbg4gh9qa34kj3fg2l

Email authentication weak

SPF
v=spf1 +mx +a +ip4:209.142.64.143 ~all
softfail (~all)
DMARC
not published
DKIM
no key found at common selectors

Certificate (current)

R12
from 2026-04-29 to 2026-07-28
Expires in 71 days

Full certificate history on crt.sh ↗

HTTP security headers

Header hygiene 60/100 Checked live page: https://www.explainthatstuff.com/

present
  • strict-transport-security
  • x-frame-options
findings
  • missing Content Security Policy
  • missing content type protection
  • missing Referrer Policy
  • missing Permissions Policy
Header values
x-frame-options
SAMEORIGIN
strict-transport-security
max-age=15552000; includeSubDomains, max-age=0; includeSubDomains; preload

Links to (10)

Linked from (1)