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Domain report

root.cz

root.cz ranks in the top 0.019% of domains by connectivity (Common Crawl, cc-main-2026-jul-aug-sep), with 79 distinct hosts observed under it.

Explore root.cz in the Web Graph

Connectivity

#25,872harmonic-centrality rank
Top percentile
0.019%
Hosts observed
79

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://root.cz/ answered with HTTP 200.

DNS records

A
  • 91.213.160.188
AAAA
  • 2001:67c:68::76
MX
  • 1 ASPMX.L.GOOGLE.COM.
  • 5 ALT1.ASPMX.L.GOOGLE.COM.
  • 5 ALT2.ASPMX.L.GOOGLE.COM.
  • 10 ALT3.ASPMX.L.GOOGLE.COM.
  • 10 ALT4.ASPMX.L.GOOGLE.COM.
NS
  • ns.iinfo.cz.
  • ns6.adminit.cz.

Live preview

Screenshot of root.cz

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

Since root.cz 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)

Registrar
INTERNET CZ, a.s.
Registered
1998-10-27
Expires
2026-10-28
Last changed
2019-02-12

Nameservers: ns6.adminit.cz, ns.iinfo.cz

Status: active

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
upgrade-insecure-requests
Strict-Transport-Security
max-age=63072000; includeSubDomains; preload
X-Frame-Options
SAMEORIGIN
X-Content-Type-Options
Not sent
Referrer-Policy
Not sent
Permissions-Policy
Not sent

What each security header does

Redirect chain

  1. 1.http://root.cz/HTTP 301

    → https://root.cz/

  2. 2.https://root.cz/HTTP 301

    → https://www.root.cz/

  3. 3.https://www.root.cz/HTTP 200

Meta tags

Title
Root.cz - informace nejen ze světa Linuxu
Description
Píšeme o serverech, sítích a počítačové bezpečnosti. Články, zprávičky, komentáře, fórum.
Canonical
https://www.root.cz/
Robots
index, follow, max-image-preview:large
Generator
Not set
Open Graph title
Root.cz - informace nejen ze světa Linuxu
Open Graph description
Píšeme o serverech, sítích a počítačové bezpečnosti. Články, zprávičky, komentáře, fórum.
Open Graph image
https://i.iinfo.cz/sh/logo/socialNetworks/logo--root-cz.png
Open Graph type
article
Twitter card
summary_large_image
Twitter title
Root.cz - informace nejen ze světa Linuxu
Twitter image
https://i.iinfo.cz/sh/logo/socialNetworks/logo--root-cz.png

robots.txt

Disallow rules (User-agent: *)
12
Disallow rules (other agents)
0

Sitemap declared:

  • https://www.root.cz/sitemap/sitemap.xml

Technology detected

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

  • Cloudflarecdn

    Server: cloudflare

  • Google Tag Manageranalytics

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

Related domains

Similar connectivity

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