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explainthatstuff.com

explainthatstuff.com ranks in the top 0.016% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 5 distinct hosts observed under it.

Explore explainthatstuff.com in the Web Graph

Connectivity

#21,296harmonic-centrality rank
Top percentile
0.016%
Hosts observed
5

From the Common Crawl cc-main-2026-jul-aug-sep hyperlink graph, 133,241,980 domains total. What this rank means

HTTPS reachability

200HTTP status

https://explainthatstuff.com/ answered with HTTP 200.

DNS records

A
  • 209.142.64.143
AAAA
No records found.
MX
  • 10 mail.explainthatstuff.com.
NS
  • ns1.zen.co.uk.
  • ns0.zen.co.uk.

Live preview

Screenshot of explainthatstuff.com

This site sends "X-Frame-Options: SAMEORIGIN", which blocks embedding it here.

Since explainthatstuff.com can't be embedded live, this is a captured screenshot instead — a snapshot from whenever it was last rendered, not necessarily this exact moment.

Domain registration (WHOIS / RDAP)

RDAP lookup failed (HTTP 429).

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed (HTTP 429).

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html; charset=UTF-8
Cache-Control
max-age=259200, must-revalidate
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=15552000; includeSubDomains, max-age=0; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://explainthatstuff.com/HTTP 301

    → http://www.explainthatstuff.com/

  2. 2.http://www.explainthatstuff.com/HTTP 301

    → https://www.explainthatstuff.com/

  3. 3.https://www.explainthatstuff.com/HTTP 200

Meta tags

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/
Robots
NOODP
Generator
Not set
Open Graph title
Explain that stuff! Science and technology made simple
Open Graph description
We make science and technology easy to understand.
Open Graph image
https://cdn4.explainthatstuff.com/optical-mouse-light-guide-large-og.jpg
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
26
Disallow rules (other agents)
1

No Sitemap declared in robots.txt.

Technology detected

Best-effort, based on a small set of well-known signals — this may be incomplete.

  • Cloudflarecdn

    Server: cloudflare

  • PHPother

    X-Powered-By: PHP/8.4.26

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