Domain report

um.dk

um.dk ranks in the top 0.29% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 449 distinct hosts observed under it.

Explore um.dk in the Web Graph

Connectivity

#389,090harmonic-centrality rank

Top percentile: 0.29%
Hosts observed: 449

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://um.dk/ answered with HTTP 200.

DNS records

A: 104.18.22.161
104.18.23.161
AAAA: 2606:4700::6812:16a1
2606:4700::6812:17a1
MX: 10 mx01.um.dk.
10 mx02.um.dk.
10 mx03.um.dk.
10 mx04.um.dk.
NS: kobe.ns.cloudflare.com.
maleah.ns.cloudflare.com.

Live preview

This is a live, sandboxed embed of um.dk — 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: max-age=31536000; includeSubdomains
X-Frame-Options: Not sent
X-Content-Type-Options: Not sent
Referrer-Policy: Not sent
Permissions-Policy: Not sent

What each security header does

Redirect chain

1.http://um.dk/HTTP 307
→ https://um.dk/
2.https://um.dk/HTTP 200

robots.txt

Disallow rules (User-agent: *): 0
Disallow rules (other agents): 11

Sitemap declared:

/sitemap.xml

Technology detected

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

Cloudflarecdn
Server: cloudflare

Similar connectivity

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