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Domain report

dan.org

dan.org ranks in the top 0.037% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 17 distinct hosts observed under it.

Explore dan.org in the Web Graph

Connectivity

#49,717harmonic-centrality rank
Top percentile
0.037%
Hosts observed
17

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

DNS records

A
  • 107.155.93.18
AAAA
No records found.
MX
  • 0 dan-org.mail.protection.outlook.com.
NS
  • ns11.dnsmadeeasy.com.
  • ns15.dnsmadeeasy.com.
  • ns10.dnsmadeeasy.com.
  • ns14.dnsmadeeasy.com.
  • ns12.dnsmadeeasy.com.
  • ns13.dnsmadeeasy.com.

Live preview

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

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
Not sent
Content-Encoding
Not sent

Security

Content-Security-Policy
Not sent
Strict-Transport-Security
Not sent
X-Frame-Options
Not sent
X-Content-Type-Options
Not sent
Referrer-Policy
no-referrer-when-downgrade
Permissions-Policy
Not sent

What each security header does

Redirect chain

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

    → https://dan.org/

  2. 2.https://dan.org/HTTP 200

Meta tags

Title
Home - Divers Alert Network
Description
DAN promotes diver safety worldwide through research, medicine, education & emergency support. Get answers: What should divers do for their own safety?
Canonical
https://dan.org/
Robots
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Generator
WordPress 7.1.3
Open Graph title
Home
Open Graph description
DAN promotes diver safety worldwide through research, medicine, education & emergency support. Get answers: What should divers do for their own safety?
Open Graph image
Not set
Open Graph type
website
Twitter card
summary_large_image
Twitter title
Not set
Twitter image
Not set

robots.txt

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

Sitemap declared:

  • https://dan.org/sitemap_index.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • WordPresscms

    <meta name="generator"> = "WordPress 7.1.3"

  • Google Tag Manageranalytics

    Found "googletagmanager.com/gtm.js" in the page's HTML

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