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Domain report

cert.se

cert.se ranks in the top 0.32% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 2 distinct hosts observed under it.

Explore cert.se in the Web Graph

Connectivity

#429,713harmonic-centrality rank
Top percentile
0.32%
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://cert.se/ answered with HTTP 200.

DNS records

A
  • 195.200.72.82
AAAA
  • 2001:67c:1c:1125::2
MX
  • 0 mx3.cert.se.
  • 0 mx4.cert.se.
NS
  • unit.nmugroup.com.
  • origo.nmugroup.com.
  • vertex.nmugroup.se.
  • ns-any1.nmugroup.se.
  • ns-any2.nmugroup.se.
  • ns-any3.nmugroup.com.
  • ephemera.nmugroup.se.

Live preview

Screenshot of cert.se

This site's Content-Security-Policy restricts embedding to specific origins ("frame-ancestors 'self'"), which does not include StatsMyWeb.

Since cert.se 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
public, no-cache
Content-Encoding
Not sent

Security

Content-Security-Policy
default-src 'self'; frame-ancestors 'self'; form-action 'self'; upgrade-insecure-requests; object-src 'none'
Strict-Transport-Security
max-age=63072000;includeSubdomains;preload
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. 1.http://cert.se/HTTP 301

    → https://cert.se/

  2. 2.https://cert.se/HTTP 200

Meta tags

Title
CERT-SE - Sveriges nationella CSIRT
Description
CERT-SE är Sveriges nationella CSIRT med uppgift att stödja det svenska samhället i arbetet med att hantera och förebygga it-säkerhetsincidenter.
Canonical
https://www.cert.se/
Robots
Not set
Generator
Not set
Open Graph title
CERT-SE - Sveriges nationella CSIRT
Open Graph description
CERT-SE är Sveriges nationella CSIRT med uppgift att stödja det svenska samhället i arbetet med att hantera och förebygga it-säkerhetsincidenter.
Open Graph image
Not set
Open Graph type
website
Twitter card
Not set
Twitter title
Not set
Twitter image
Not set

robots.txt

cert.se has no robots.txt.

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.