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Domain report

theory11.com

theory11.com ranks in the top 0.30% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 10 distinct hosts observed under it.

Explore theory11.com in the Web Graph

Connectivity

#397,128harmonic-centrality rank
Top percentile
0.30%
Hosts observed
10

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://theory11.com/ answered with HTTP 200.

DNS records

A
  • 104.26.2.26
  • 104.26.3.26
  • 172.67.72.165
AAAA
  • 2606:4700:20::681a:21a
  • 2606:4700:20::681a:31a
  • 2606:4700:20::ac43:48a5
MX
  • 10 aspmx.l.google.com.
  • 20 alt1.aspmx.l.google.com.
  • 20 alt2.aspmx.l.google.com.
  • 30 aspmx2.googlemail.com.
  • 30 aspmx3.googlemail.com.
  • 30 aspmx4.googlemail.com.
  • 30 aspmx5.googlemail.com.
NS
  • bob.ns.cloudflare.com.
  • dana.ns.cloudflare.com.
AS
Server in network CLOUDFLARENET, AS13335 · United States104.26.2.0/24, which holds 104.26.2.26

Live preview

This is a live, sandboxed embed of theory11.com — not a copy. What it shows can change any time the site itself does.

Domain registration (WHOIS / RDAP)

Registrar
Cloudflare, Inc.
Registered
2007-02-14
Expires
2027-02-14
Last changed
2025-01-15

Nameservers: BOB.NS.CLOUDFLARE.COM, DANA.NS.CLOUDFLARE.COM

Status: client transfer prohibited

How to read WHOIS and RDAP data

SSL certificate

Certificate Transparency lookup failed: The operation was aborted due to timeout

How to check when a certificate expires

HTTP & security headers

Response

Server
cloudflare
Content-Type
text/html
Cache-Control
Not sent
Content-Encoding
Not sent

Security

Content-Security-Policy
frame-src *
Strict-Transport-Security
max-age=0; preload
X-Frame-Options
Not sent
X-Content-Type-Options
nosniff
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://theory11.com/HTTP 301

    → https://theory11.com/

  2. 2.https://theory11.com/HTTP 301

    → https://www.theory11.com/

  3. 3.https://www.theory11.com/HTTP 200

Meta tags

Title
theory11 | Learn Magic Tricks & Shop the World's Finest Playing Cards
Description
theory11 is the largest producer of premium, designer playing cards - and the best place to learn incredible, mind-blowing magic tricks and cardistry.
Canonical
Not set
Robots
NOODP
Generator
Not set
Open Graph title
theory11 — Learn Magic Tricks, Card Tricks & Cardistry
Open Graph description
theory11 is the largest producer of premium, designer playing cards - and the best place to learn incredible, mind-blowing magic tricks and cardistry.
Open Graph image
Not set
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
17
Disallow rules (other agents)
4

Sitemap declared:

  • https://www.theory11.com/sitemaps/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Shopifyecommerce

    Found "cdn.shopify.com" in the page's HTML

Related domains

Similar connectivity

Domains ranked just above and below it in the same snapshot.