Contacts

  • Holder

    TELE3

  • Registrar

    TELE3 s.r.o. REG-TELE3

    Vinohradská 184
    Praha 3
    130 00
    CZ

    +420.777111158

Website

Answer
200 OKin 165 ms
Ends at
https://www.tele3.cz/
Redirects
  • https://dc3.cz/ (301)
Title
TELE3 | registrace domén | webhosting | virtuální servery
Server
nginx
Protocols
HTTP/1.1
Certificate
Let's Encrypt (YR1) for *.dc3.cz and dc3.cz, valid until
www
Redirects to https://www.tele3.cz/ (301)

DNS records

dc3.cz

A
TTL 10 min
AAAA
TTL 10 min
MX
  • 10mail.dc3.cz
TTL 10 min
NS
TTL 10 min
SOA
  • Primary server
    ns1.tele3.cz
    Contact
    root@tele3.cz
    Serial
    1793834539
    Refresh
    8 hours
    Retry
    2 hours
    Expire
    14 days
    Negative TTL
    12 hours
TTL 10 min
CAA
TTL 10 min

www.dc3.cz

CNAME
  • dc3.cz
TTL 10 min
A
TTL 10 min
AAAA
TTL 10 min

As ns2.tele3.cz answers them

Reputation

Domain blocklists

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

Rankings

855,037 Tranco rank down from 642,159 on 2026-10-05
0.74Open PageRank, out of 10
16,328,731Open PageRank position
1Referring domains

From Tranco and Open PageRank

DNSSEC

Every link from the root to dc3.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

dc3.cz Verified

  • Found 1 DS records for dc3.cz in the cz zone
  • DS=51163/SHA-256 has algorithm ECDSAP384SHA384
  • Found 1 RRSIGs over DS RRset
  • RRSIG=20081 and DNSKEY=20081 verifies the DS RRset
  • Found 2 DNSKEY records for dc3.cz
  • DS=51163/SHA-256 verifies DNSKEY=51163/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=51163 and DNSKEY=51163/SEP verifies the DNSKEY RRset
  • Found 1 RRSIGs over SOA RRset
  • RRSIG=39935 and DNSKEY=39935 verifies the SOA RRset