vrcen.cz - robtex.com

vrcen.cz

DNSSEC⚠️ Not signed
A2a01:430:53::8300:201🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ
A2a01:430:53::8300:202🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ
A83.167.244.201🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5
A83.167.244.202🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5
NSns1.svethostingu.cz ⭐
A2a01:430:53::8300:171🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ
A83.167.244.171🇨🇿 MASTER-AS83.167.224.0/19 MASTER-NET-5
NSns2.svethostingu.cz
A2a02:a40:20c::98🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.
A212.158.159.98🇨🇿 BlueTone-AS212.158.128.0/19 BlueTone-CRa-CZ First address block
PTRns2.svethostingu.cz
NSns3.svethostingu.eu
A2a03:b0c0:3:e0::14d:d001🇩🇪 DIGITALOCEAN2a03:b0c0:3::/48 DigitalOcean
PTRns3.svethostingu.eu
A165.22.74.103🇩🇪 DIGITALOCEAN165.22.64.0/20 DigitalOcean
PTRns3.svethostingu.eu
MX063b01154822db31.mx2.emailprofi.seznam.cz ⭐
A2a02:598:2::1146🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx2.emailprofi.seznam.cz
A77.75.77.146🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx2.emailprofi.seznam.cz
MX063b01154822db31.mx1.emailprofi.seznam.cz(20)
A2a02:598:2::1056🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx1.emailprofi.seznam.cz
A77.75.77.56🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx1.emailprofi.seznam.cz
TXTv=spf1 mx include:_spf.svethostingu.cz include:spf.seznam.cz ~all
TXTgoogle-site-verification=U528WSeWmDK8azCJ34pdywdYeVW265hIEb_QOJNQpYQ
SOAns1.svethostingu.czdnsmaster@svethostingu.cz 2026-06-08 #3

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1783927041
WOT: SAFE (63/100)

Same first word

vrcen.cz

Similar names

encrv.com
revcn.com
vencr.com
ncver.com
cnrev.com
nercv.com
cvner.com
crenv.com
nercv.org
cnver.cn
cnevr.com
vncer.com
nvrec.com
cervn.com
ncver.edu.au
recnv.com
crevn.com
cnver.com
revcn.net
renvc.com
cevrn.ru
nvcre.com
envrc.org

DNS History

16 records (9 active, 7 former)

20162017201820192020202120222023202420252026NSns1.svethostingu.czns2.svethostingu.czns3.svethostingu.euns1.savana.czns2.savana.czns3.savana.czMX063b01154822db31.mx1.emailprofi.seznam.cz063b01154822db31.mx2.emailprofi.seznam.czmx1.savana.czmx2.savana.czA2a01:430:53::8300:2012a01:430:53::8300:20283.167.244.20183.167.244.202217.16.187.172a00:1ed0:1:1800:7:23:200:1
○NSns1.savana.cz2015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
●NSns1.svethostingu.cz2026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
○NSns2.savana.cz2015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
●NSns2.svethostingu.cz2026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
○NSns3.savana.cz2015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
●NSns3.svethostingu.eu2026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
●MX063b01154822db31.mx1.emailprofi.seznam.cz2026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
●MX063b01154822db31.mx2.emailprofi.seznam.cz2026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
○MXmx1.savana.cz2015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
○MXmx2.savana.cz2015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
○A217.16.187.172015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
○A2a00:1ed0:1:1800:7:23:200:12015-07-05 → 2017-03-18 · 4 obs
● 2015-07-05 05:03:42
● 2017-03-18 18:07:08
○ 2026-04-27 13:45:34
○ 2026-07-13 07:19:24
●A2a01:430:53::8300:2012026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
●A2a01:430:53::8300:2022026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
●A83.167.244.2012026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24
●A83.167.244.2022026-04-27 → 2026-07-13 · 3 obs
○ 2017-03-18 18:07:08
● 2026-04-27 13:45:34
● 2026-07-13 07:19:24

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
vrcen.czns1.svethostingu.cz, ns2.svethostingu.cz, ns3.svethostingu.eu4 records

✅ Authoritative Response

Server:165.22.74.103

NS records: ns1.svethostingu.cz, ns2.svethostingu.cz, ns3.svethostingu.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for vrcen.cz (unsigned zone)

⏱️ Timing

Total: 2474ms | Queries: -

📄 Records

TypeCountSample Data
A283.167.244.202, 83.167.244.201
AAAA22a01:430:53::8300:202, 2a01:430:53::8300:201
NS3ns3.svethostingu.eu, ns2.svethostingu.cz...
MX2063b01154822db31.mx1.emailprofi.seznam.c, 063b01154822db31.mx2.emailprofi.seznam.c
TXT2google-site-verification=U528WSeWmDK8azC, v=spf1 mx include:_spf.svethostingu.cz i
SOA1ns1.svethostingu.cz dnsmaster.svethostin

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.svethostingu.cz, ns1.svethostingu.cz, ns2.svethostingu.cz...)

Analysis

IP Addresses

vrcen.cz has four IP addresses: 83.167.244.201, 83.167.244.202, 2a01:430:53::8300:201 and 2a01:430:53::8300:202.

hrmetal.cz, alab.cz, gloobe.cz plus two other host names have IP numbers in common with vrcen.cz.

Name Servers

vrcen.cz carries NS records delegating to ns1.svethostingu.cz, ns2.svethostingu.cz and ns3.svethostingu.eu.

vrcen.cz shares at least some of its name servers with other domains, including sladkosti.net, lookmagazine.cz, navstivtebeskydy.cz and two others.

These name servers are frequently seen alongside the name servers ns1.shopion.cz, ns2.shopion.cz, ns3.shopion.cz and ns3.svethostingu.cz.

ns1.svethostingu.cz, ns2.svethostingu.cz and ns3.svethostingu.eu are three hostnames that each resolve to a pair of IP addresses: ns1.svethostingu.cz to 83.167.244.171 and 2a01:430:53::8300:171, ns2.svethostingu.cz to 212.158.159.98 and 2a02:a40:20c::98, and ns3.svethostingu.eu to 165.22.74.103 and 2a03:b0c0:3:e0::14d:d001.

Mail Servers

vrcen.cz uses two mail servers, 063b01154822db31.mx1.emailprofi.seznam.cz and 063b01154822db31.mx2.emailprofi.seznam.cz.

063b01154822db31.mx1.emailprofi.seznam.cz and 063b01154822db31.mx2.emailprofi.seznam.cz both carry two IP addresses. The A records for 063b01154822db31.mx1.emailprofi.seznam.cz are 77.75.77.56 and 2a02:598:2::1056; the A records for 063b01154822db31.mx2.emailprofi.seznam.cz are 77.75.77.146 and 2a02:598:2::1146.