bluetone.cz is not available!

  • Website up
  • Not on blocklists
Registrar
INTERNET CZ, a.s.
Registered on
Expires on
Last updated
Name servers
  • ns1.bluetone.cz
  • ns2.bluetone.cz
  • ns.bluetone.cz
Status
  • active
DNSSEC
Not signed
Checked
Visit bluetone.cz

Contacts

  • Holder

    SB:20020726

  • Administrative

    KMARTY

  • Administrative

    SB:RADIOKOM_05

  • Administrative

    SMER

  • Registrar

    INTERNET CZ, a.s. REG-INTERNET-CZ

    Ktiš 2
    Ktiš
    38403
    CZ

    +420.383835353

Website

The front page of bluetone.cz
Captured
Answer
200 OKin 147 ms
Ends at
https://www.cra.cz
Redirects
  • https://bluetone.cz/ (301)
Title
Datové centrum, přenos dat, Cloud a IoT | České Radiokomunikace
Server
Apache
Protocols
HTTP/2
Certificate
Let's Encrypt (YE2) for bluetone.cz and www.bluetone.cz, valid until
www
Redirects to https://www.cra.cz (301)

DNS records

bluetone.cz

A
TTL 5 min
AAAA
TTL 5 min
MX
TTL 1 hour
NS
  • ns.bluetone.cz
  • ns1.bluetone.cz
  • ns2.bluetone.cz
TTL 1 day
TXT
TTL 5 min
SOA
  • Primary server
    ns.bluetone.cz
    Contact
    [email protected]
    Serial
    2026101400
    Refresh
    1 hour
    Retry
    1 hour
    Expire
    14 days
    Negative TTL
    3 hours
TTL 1 hour
CAA
None: any certificate authority may issue for this name

www.bluetone.cz

CNAME
  • npm.bluetone.cz
TTL 1 hour
A
TTL 1 hour
AAAA
TTL 1 hour

_dmarc.bluetone.cz

TXT
  • v=DMARC1; p=quarantine; sp=none; rua=mailto:mailValidity@cra.cz; ruf=mailto:mailValidity@cra.cz; fo=1;
TTL 1 hour

As ns2.bluetone.cz answers them

Reputation

Domain blocklists

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

Rankings

88,444 Tranco rank down from 81,391 on 2026-09-28
1.73Open PageRank, out of 10
17,745,499Open PageRank position
9Referring domains

From Tranco and Open PageRank

DNSSEC

bluetone.cz is not signed.

. 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

bluetone.cz Not signed

  • No DS records found for bluetone.cz in the cz zone