t-systems.cz is not available!

  • DNSSEC verified
  • Website up
  • Not on blocklists
Registrar
COREHUB SL (Sociedad Unipersonal)
Registered on
Expires on
Last updated
Name servers
Status
  • active
DNSSEC
Signed and verified
Checked
Visit t-systems.cz

Contacts

  • Holder and administrative

    C14397111-CZ

  • Registrar

    COREHUB SL (Sociedad Unipersonal) REG-CORE

    Carrer Gran Via 452, Atic 2
    Barcelona
    08015
    ES

    +34.935275235

Website

Answer
200 OKin 78 ms
Ends at
https://www.t-mobile.cz/osobni
Redirects
  • http://t-systems.cz/ (301)
  • https://www.t-mobile.cz (301)
Title
Spolehlivý operátor pro mobilní i pevné služby - T-Mobile
Protocols
HTTP/2
Certificate
Deutsche Telekom Security GmbH (Telekom Security DV RSA CA 22) for ebs08.telekom.de, valid until Issued for another name
www
The secure connection failed

DNS records

t-systems.cz

A
TTL 1 hour
MX
TTL 1 hour
NS
TTL 1 hour
TXT
TTL 1 hour
SOA
  • Primary server
    ns.t-systems.cz
    Contact
    root@cz.net
    Serial
    2025114201
    Refresh
    1 hour
    Retry
    2 hours
    Expire
    21 days
    Negative TTL
    1 day
TTL 1 hour
CAA
None: any certificate authority may issue for this name

www.t-systems.cz

A
TTL 5 min

As ns.t-systems.cz answers them

Reputation

Domain blocklists

  • Spamhaus DBL Not listed
  • SURBL Not listed
  • URIBL Not listed

Rankings

3,309,924 Tranco rank down from 3,029,590 on 2026-09-28
2.14Open PageRank, out of 10
5,605,484Open PageRank position
10Referring domains

From Tranco and Open PageRank

DNSSEC

Every link from the root to t-systems.cz verifies.

. Verified

  • Found 3 DNSKEY records for .
  • DS=20326/SHA-256 verifies DNSKEY=20326/SEP
  • DS=38696/SHA-256 verifies DNSKEY=38696/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=38696 and DNSKEY=38696/SEP verifies the DNSKEY RRset

cz Verified

  • Found 1 DS records for cz in the . zone
  • DS=20237/SHA-256 has algorithm ECDSAP256SHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=8763 and DNSKEY=8763 verifies the DS RRset
  • Found 2 DNSKEY records for cz
  • DS=20237/SHA-256 verifies DNSKEY=20237/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=20237 and DNSKEY=20237/SEP verifies the DNSKEY RRset

t-systems.cz Verified

  • Found 1 DS records for t-systems.cz in the cz zone
  • DS=59481/SHA-256 has algorithm ECDSAP384SHA384
  • Found 1 RRSIGs over DS RRset
  • RRSIG=20081 and DNSKEY=20081 verifies the DS RRset
  • Found 3 DNSKEY records for t-systems.cz
  • DS=59481/SHA-256 verifies DNSKEY=59481/SEP
  • Found 2 RRSIGs over DNSKEY RRset
  • RRSIG=43847 over the DNSKEY RRset was made with a key that is not trusted here
  • RRSIG=59481 and DNSKEY=59481/SEP verifies the DNSKEY RRset
  • Found 1 RRSIGs over SOA RRset
  • RRSIG=48357 and DNSKEY=48357 verifies the SOA RRset