Contacts

  • Holder

    WEB4U_KCKPSAVBHAKWM

  • Registrar

    Web4U s.r.o. REG-WEB4U

    Korunní 2569/108, Vinohrady
    Praha 10
    10100
    CZ

    +420.270001456

Website

Answer
200 OKin 199 ms
Title
Váš jediný nástroj pro péči o zákazníky | SupportBox
Server
cloudflare
Protocols
HTTP/2
Certificate
Google Trust Services (WE1) for supportbox.cz and *.supportbox.cz, valid until
www
Redirects to https://supportbox.cz/ (301)

DNS records

supportbox.cz

A
TTL 5 min
AAAA
TTL 5 min
MX
TTL 1 hour
NS
TTL 1 day
TXT
  • google-site-verification=IrcEKU4F5nAQb4dF4Es9QGJfGqNCxG5S3NxcDOMDu6U
  • google-site-verification=RCYN5XyX7T5c5k6t-Liy9f5GZqVGPS1CEF7Mjg1HIpI
  • google-site-verification=WDOpWPh1hMAxcssbfNnGTc6njIep2qiKwIqqr1AFAV4
  • google-site-verification=vJbhVvk6chjDii_ZXAwfR6iy0Al_2-acy8zJrvVQZv4
  • v=spf1 mx a ip4:89.185.227.51 ip4:89.185.227.52 ip4:62.109.150.175 ip4:37.157.196.234 include:spf1.supportbox.cz include:spf.smartemailing.cz include:_spf.google.com ~all
TTL 5 min
SOA
TTL 30 min
CAA
None: any certificate authority may issue for this name

www.supportbox.cz

A
TTL 5 min

_dmarc.supportbox.cz

TXT
TTL 5 min

As darwin.ns.cloudflare.com answers them

Reputation

Domain blocklists

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

Rankings

47,455 Tranco rank up from 47,951 on 2026-09-21
6.47Open PageRank, out of 10
139,547Open PageRank position
262Referring domains

From Tranco and Open PageRank

DNSSEC

supportbox.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

supportbox.cz Not signed

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