dns.pizza
Domain Intelligence Report

blesk.cz

Full ownership history report — $29 at AboutUsCompare
Gathering intelligence... (12/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
DNSSEC unsigned
no attacks or spoofing
Up
HTTP 200
reachable and responding
Right
Set up Page Watch
it is what it is
Ready
80d ahead
you see what's coming
Outline
WHOIS
Webglobe, s.r.o. · registered 29 years ago · expires Oct 27, 2027
DNS
1 A · 7 MX · 2 NS · 1 PTR · 1 SOA · 4 TXT
SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 80d · 2 SANs
Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗
DNSSEC
not signed
Tech Stack
CDN: Cloudflare · Host: Ringier Slovakia Media s.r.o. · Email: Google Workspace
HTTP
2 redirect → 200 · HSTS ✗ · CSP ✓ · X-Frame ✗ · Nosniff ✓
Security
C (150/215) · 1 critical · 2 high
Threats
risk: none
Deliverability
B (72/100) · 7 MX · 12 IPs · 6 issue(s)
Subdomains
3 found · 62 answered (50 timed out) — chat, m, www
Web Archive
first snapshot 1999-11-27 · 26y archived
DNS Recordschecked 3.5d ago
Details
1 A · 7 MX · 2 NS · 1 PTR · 1 SOA · 4 TXT
WHOISchecked 3.5d ago
Details
Webglobe, s.r.o.
Registered 29 years ago
Expires Oct 27, 2027
Renewal history →
Then vs Nownew
No card for this name. We compare then and now for domains that are in the top million and had an AboutUs page. That says nothing about this domain’s age or safety.
Check what it is now →
SSL/TLSchecked 3.5d ago
Details
Valid certificate
Issuer: Let's Encrypt
Protocol: TLSv1.3
Expires in 80 days
2 SAN(s)
Securitychecked 3.5d ago
Details
C
150/215
1 critical2 high
Weakest: Basic Security, Record Security
Email Authchecked 3.5d ago
Details
SPFDKIMDMARC
DNSSECchecked 3.5d ago
Details
Not DNSSEC-signed
Tech Stackchecked 3.5d ago
Details
CloudflareRingier Slovakia Media s.r.o.Email: Google WorkspaceGoogle Search ConsoleFacebook Domain Verification
HTTP / Headerschecked 3.5d ago
Details
2 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 3.5d ago
Details
Risk: none · score 0
Zone census
Subdomainschecked 3.5d ago
Details
3 found · 62 answered · 50 timed out (unknown)
chatmwww
Click a subdomain for its full report
Web Archivechecked 3.5d ago
Details
First archived: 1999-11-27
~26 years of history
Deliverabilitychecked 3.5d ago
Details
B
72/100 · 6 issue(s)
7 MX · 12 IP(s)
Top fix: No DMARC record

IPv6

Not checked yet. aaaa.bot has no recent IPv6 result for blesk.cz. Run the check on aaaa.bot →

Lineage

Our records: Jan 8, 2009 → Jun 26, 2026

Oldest registry snapshot we hold: 2025 · 1 renewal on record. These dates are when our records begin, not when the domain was registered.

DNS provider

  • ringier.cz + sbone.cz
    Jan 2009 – Jan 2012
  • ignum.cz + ringier.cz
    Feb 2012 – Jan 2015
  • cncenter.cz + ignum.cz
    Jan 2015 – May 2022
  • webglobe.com + webglobe.cz
    Jul 2022 – Nov 2023
  • Cloudflare
    Dec 2023 – Jun 2026
What changed
  1. Renewed +1 year between Sep 13, 2025 and Nov 6, 2025Expiry moved from 2025-10-27 to 2026-10-27.
  2. DNS moved to Cloudflare between Nov 2, 2023 and Dec 1, 2023ns1.webglobe.cz, ns2.webglobe.cz, ns3.webglobe.com → josephine.ns.cloudflare.com, rick.ns.cloudflare.com. Old set last seen in WHOIS on 2023-11-02; new set first seen in WHOIS on 2023-12-01.
  3. DNS moved to webglobe.com + webglobe.cz between May 19, 2022 and Jul 2, 2022ns.cncenter.cz, ns2.ignum.cz → ns1.webglobe.cz, ns2.webglobe.cz, ns3.webglobe.com. Old set last seen in WHOIS on 2022-05-19; new set first seen in WHOIS on 2022-07-02.
  4. DNS moved to cncenter.cz + ignum.cz between Jan 1, 2015 and Jan 9, 2015ns.ringier.cz, ns2.ignum.cz → ns.cncenter.cz, ns2.ignum.cz. Old set last seen in WHOIS on 2015-01-01; new set first seen in WHOIS on 2015-01-09.
  5. DNS moved to ignum.cz + ringier.cz between Jan 3, 2012 and Feb 16, 2012ns.ringier.cz, ns.sbone.cz → ns.ringier.cz, ns2.ignum.cz. Old set last seen in WHOIS on 2012-01-03; new set first seen in WHOIS on 2012-02-16.

Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.

Registrar and renewals: 11 WHOIS/RDAP snapshots, 2025-07-02 to 2026-04-22 (ledger built 2026-09-27). Every renewal

DNS provider, WHOIS snapshots: 141 WHOIS/RDAP snapshots that listed nameservers, 2009-01-08 to 2026-06-26 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.

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Explore related

Registered in 1997 — the same year as google.com, facebook.com and mail.ru.

AgeDomains from 1997TLD.cz domainsRegistrarWebglobe, s.r.o.DNS providercloudflare.com nameserversIPv6Does blesk.cz have IPv6?