problem.cz - dns.ninja

problem.cz

DNSSEC⚠️ Not signed
A92.240.253.223πŸ‡ΈπŸ‡° VNET-AS92.240.253.0/24
NSns1.exohosting.cz ⭐
A2a00:10d8:15:0:2c8b:ddff:fecb:3755πŸ‡ΈπŸ‡° VNET-AS2a00:10d8::/32
A92.240.235.93πŸ‡ΈπŸ‡° VNET-AS92.240.235.0/24
NSns.exohosting.cz
A2a10:ac80::ddπŸ‡ΈπŸ‡° VNET-AS2a10:ac80::/31
PTRns.exohosting.sk
A185.184.28.9πŸ‡ΈπŸ‡° VNET-AS185.184.28.0/24
PTRns.exohosting.sk
NSns3.exohosting.cz
A2001:19f0:6c01:81c:5400:3ff:fe32:f748πŸ‡©πŸ‡ͺ AS-VULTR2001:19f0:6c00::/38 Vultr Assigned Prefix
PTRns3.exohosting.cz
A45.32.153.34πŸ‡©πŸ‡ͺ AS-VULTR45.32.152.0/21 Vultr Assigned Prefix
PTRns3.exohosting.cz
MXrelay.exohosting.sk ⭐
A92.240.253.136πŸ‡ΈπŸ‡° VNET-AS92.240.253.0/24
MXrelay1.exohosting.sk ⭐
A92.240.253.137πŸ‡ΈπŸ‡° VNET-AS92.240.253.0/24
PTRrelay.dnsserver.eu
MXrelay2.dnsserver.eu(20)
A92.240.253.136πŸ‡ΈπŸ‡° VNET-AS92.240.253.0/24
TXTv=spf1 a mx include:_spf.dnsserver.eu ?all
SOAns.exohosting.czns@exohosting.cz serial=1678752026

cz

DNSSECπŸ”’ 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=1785656841

Same first word

Similar names

DNS History

14 records (7 active, 7 former)

20162017201820192020202120222023202420252026NSns.exohosting.czns1.exohosting.czns3.exohosting.czns1.profisolution.czns2.profisolution.czMXrelay.exohosting.skrelay1.exohosting.skrelay2.dnsserver.eumx10.profisolution.czmx10.xweb.czrelay3.dnsserver.euA92.240.253.223193.19.179.3092.240.253.56
●NSns.exohosting.cz2015-12-24 β†’ 2026-08-02 Β· 3 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2026-08-02 07:55:38
●NSns1.exohosting.cz2015-12-24 β†’ 2026-08-02 Β· 3 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2026-08-02 07:55:38
β—‹NSns1.profisolution.cz2015-05-18 β†’ 2015-10-24 Β· 4 obs
● 2015-05-18 09:55:14
● 2015-10-24 11:07:06
β—‹ 2015-12-24 13:24:24
β—‹ 2026-08-02 07:55:38
β—‹NSns2.profisolution.cz2015-05-18 β†’ 2015-10-24 Β· 4 obs
● 2015-05-18 09:55:14
● 2015-10-24 11:07:06
β—‹ 2015-12-24 13:24:24
β—‹ 2026-08-02 07:55:38
●NSns3.exohosting.cz2015-12-24 β†’ 2026-08-02 Β· 3 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2026-08-02 07:55:38
β—‹MXmx10.profisolution.cz2015-05-18 β†’ 2015-10-24 Β· 4 obs
● 2015-05-18 09:55:14
● 2015-10-24 11:07:06
β—‹ 2015-12-24 13:24:24
β—‹ 2026-08-02 07:55:38
β—‹MXmx10.xweb.cz2015-05-18 β†’ 2015-10-24 Β· 4 obs
● 2015-05-18 09:55:14
● 2015-10-24 11:07:06
β—‹ 2015-12-24 13:24:24
β—‹ 2026-08-02 07:55:38
●MXrelay.exohosting.sk2015-12-24 β†’ 2026-08-02 Β· 3 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2026-08-02 07:55:38
●MXrelay1.exohosting.sk2015-12-24 β†’ 2026-08-02 Β· 3 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2026-08-02 07:55:38
●MXrelay2.dnsserver.eu2015-12-24 β†’ 2026-08-02 Β· 3 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2026-08-02 07:55:38
β—‹MXrelay3.dnsserver.eu2015-12-24 β†’ 2016-06-17 Β· 5 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2016-06-17 18:32:26
β—‹ 2017-02-05 18:17:00
β—‹ 2026-08-02 07:55:38
β—‹A193.19.179.302015-05-18 β†’ 2015-10-24 Β· 4 obs
● 2015-05-18 09:55:14
● 2015-10-24 11:07:06
β—‹ 2015-12-24 13:24:24
β—‹ 2026-08-02 07:55:38
●A92.240.253.2232020-01-08 β†’ 2026-08-02 Β· 3 obs
β—‹ 2017-02-05 18:17:00
● 2020-01-08 19:02:08
● 2026-08-02 07:55:38
β—‹A92.240.253.562015-12-24 β†’ 2017-02-05 Β· 5 obs
β—‹ 2015-10-24 11:07:06
● 2015-12-24 13:24:24
● 2017-02-05 18:17:00
β—‹ 2020-01-08 19:02:08
β—‹ 2026-08-02 07:55:38

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
problem.czns.exohosting.cz, ns1.exohosting.cz, ns3.exohosting.cz2 records

βœ… Authoritative Response

Server:45.32.153.34

NS records: ns.exohosting.cz, ns1.exohosting.cz, ns3.exohosting.cz

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for problem.cz (unsigned zone)

⏱️ Timing

Total: 2494ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A192.240.253.223
NS3ns.exohosting.cz, ns1.exohosting.cz...
MX3relay.exohosting.sk (pri: 10), relay1.exohosting.sk (pri: 10)...
TXT1v=spf1 a mx include:_spf.dnsserver.eu ?a
SOA1ns.exohosting.cz ns.exohosting.cz

πŸ“Œ Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.exohosting.cz, ns3.exohosting.cz)

Analysis

IP Addresses

problem.cz directs to one IP number, which is 92.240.253.223.

Among the host names that share IP numbers with problem.cz are www.epas.sk, ns.uzkost.eu, ns.rka.sk and two others.

Name Servers

DNS for problem.cz is handled by three authoritative name servers: ns1.exohosting.cz, ns3.exohosting.cz and ns.exohosting.cz.

There is at least partial name server overlap between problem.cz and other domains β€” lacreation.eu, diamantovykotuc.sk, naken.sk and two more among them.

These name servers tend to appear in combination with the name servers ns.exohosting.sk, ns1.exohosting.eu, ns1.exohosting.sk and ns3.exohosting.sk.

Three hostnames β€” ns1.exohosting.cz, ns3.exohosting.cz and ns.exohosting.cz β€” each have two IP addresses: ns1.exohosting.cz has 92.240.235.93 and 2a00:10d8:15:0:2c8b:ddff:fecb:3755, ns3.exohosting.cz has 45.32.153.34 and 2001:19f0:6c01:81c:5400:3ff:fe32:f748, and ns.exohosting.cz has 185.184.28.9 and 2a10:ac80::dd.

Mail Servers

Incoming mail for problem.cz is delivered via three mail servers: relay2.dnsserver.eu, relay1.exohosting.sk and relay.exohosting.sk.

problem.cz shares at least some of its mail servers with other domains β€” for example ecler.sk, bawares.sk, dashcam.cz and two more.

These mail servers are routinely seen in conjunction with the mail servers relay3.dnsserver.eu and relay.dnsserver.eu.

Each of the hostnames relay2.dnsserver.eu, relay1.exohosting.sk and relay.exohosting.sk has a single IP address assigned: relay2.dnsserver.eu directs to 92.240.253.136, relay1.exohosting.sk directs to 92.240.253.137 and relay.exohosting.sk directs to 92.240.253.136.

Host names pointing to 92.240.253.136 IP addresses: relay2.dnsserver.eu and relay.exohosting.sk.