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Domain report

markdownguide.org

markdownguide.org ranks in the top 0.0032% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore markdownguide.org in the Web Graph

Connectivity

#4,319harmonic-centrality rank
Top percentile
0.0032%
Hosts observed
2

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://markdownguide.org/ answered with HTTP 200.

DNS records

A
  • 151.101.131.52
  • 151.101.67.52
  • 151.101.3.52
  • 151.101.195.52
AAAA
  • 2a04:4e42:a::820
MX
  • 10 in1-smtp.messagingengine.com.
  • 20 in2-smtp.messagingengine.com.
NS
  • amy.ns.cloudflare.com.
  • phil.ns.cloudflare.com.

Live preview

Screenshot of markdownguide.org

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

Since markdownguide.org 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
Cache-Control
no-store, max-age=0
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
max-age=31557600
X-Frame-Options
DENY
X-Content-Type-Options
nosniff
Referrer-Policy
strict-origin-when-cross-origin
Permissions-Policy
interest-cohort=()

What each security header does

Redirect chain

  1. 1.http://markdownguide.org/HTTP 301

    → http://www.markdownguide.org/

  2. 2.http://www.markdownguide.org/HTTP 301

    → https://www.markdownguide.org/

  3. 3.https://www.markdownguide.org/HTTP 200

Meta tags

Title
Markdown Guide
Description
A free and open-source reference guide that explains how to use Markdown.
Canonical
https://www.markdownguide.org/
Robots
Not set
Generator
Not set
Open Graph title
Markdown Guide
Open Graph description
A free and open-source reference guide that explains how to use Markdown.
Open Graph image
https://www.markdownguide.org/assets/images/markdown-guide-og.jpg
Open Graph type
website
Twitter card
summary
Twitter title
Not set
Twitter image
Not set

robots.txt

Disallow rules (User-agent: *)
2
Disallow rules (other agents)
0

Sitemap declared:

  • https://www.markdownguide.org/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

Related domains

Similar connectivity

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