Contacts

  • Holder and administrative

    A24CONTACT-16715

  • Registrar

    ACTIVE 24, s.r.o. REG-ACTIVE24

    Sokolovská 394/17
    Praha 8
    186 00
    CZ

    +420.234262000

Website

Answer
200 OKin 71 ms
Ends at
https://www.oksystem.com/en
Redirects
  • http://biforum.cz/ (301)
  • https://oksystem.com/ (301)
  • https://www.oksystem.com/ (301)
Title
OKsystem | Your first choice for development and innovation | OKsystem
Server
OKsystem
Protocols
HTTP/1.1
Certificate
Let's Encrypt (YE2) for oksystem.com and www.oksystem.com, valid until Issued for another name
www
The secure connection failed

DNS records

biforum.cz

A
TTL 1 hour
NS
TTL 1 hour
SOA
TTL 1 day
CAA
None: any certificate authority may issue for this name

www.biforum.cz

A
TTL 1 hour

As ns2.websupport.eu answers them

Reputation

Domain blocklists

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

Rankings

Not ranked Tranco rank
1.16Open PageRank, out of 10
26,389,652Open PageRank position
3Referring domains

From Tranco and Open PageRank

DNSSEC

Every link from the root to biforum.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

biforum.cz Verified

  • Found 1 DS records for biforum.cz in the cz zone
  • DS=56925/SHA-256 has algorithm ECDSAP256SHA256
  • Found 1 RRSIGs over DS RRset
  • RRSIG=20081 and DNSKEY=20081 verifies the DS RRset
  • Found 2 DNSKEY records for biforum.cz
  • DS=56925/SHA-256 verifies DNSKEY=56925/SEP
  • Found 1 RRSIGs over DNSKEY RRset
  • RRSIG=56925 and DNSKEY=56925/SEP verifies the DNSKEY RRset
  • Found 1 RRSIGs over SOA RRset
  • RRSIG=55 and DNSKEY=55 verifies the SOA RRset