simholidays.com - dns.ninja

simholidays.com

DNSSEC🔒 Signed (DS record present)
A81.0.206.125🇨🇿 CASABLANCA-AS81.0.206.0/23 Casablanca INT
PTRc1.webareal.cz
NSns1.websupport.cz ⭐
A2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32
PTRns1.websupport.eu
A45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24
PTRns1.websupport.eu
NSns2.websupport.cz
A2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48
PTRns2.websupport.eu
A185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24
PTRns2.websupport.eu
NSns3.websupport.eu
A2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32
PTRns3.websupport.eu
A45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24
PTRns3.websupport.eu
MXmx10.active24.cz ⭐
A2a00:4b40:aaaa:2101:45:13:137:85🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32
A45.13.137.85🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24
PTRmx10.active24.cz
MXmx20.active24.cz(100)
A2a00:4b40:aaaa:2101:45:13:137:86🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32
A45.13.137.86🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24
PTRmx20.active24.cz
TXTv=spf1 a mx include:_spf.websupport.cz -all
SOAns1.websupport.czadmin@websupport.cz serial=1778573904

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1781786775

Subdomains

mailin2.simholidays.com
mailin1.simholidays.com

Same first word

simholidays.com
simholidays.cz

Similar names

msiholidays.com
msiholidays.org

DNS History

22 records (6 active, 16 former)

20162017201820192020202120222023202420252026NSns1.websupport.czns2.websupport.czns3.websupport.eualfa.ns.active24.czbeta.ns.active24.czgama.ns.active24.skns.darkmay.comns.darkmay.czns.rozhled.czns.rozhled.euMXmx10.active24.czmx20.active24.czmail.cesys.eumailin1.simholidays.commailin2.simholidays.commx.rozhled.czmx.rozhled.netmx1.active24.commx2.active24.comA81.0.206.125178.238.43.21081.31.47.101
○NSalfa.ns.active24.cz2018-10-08 → 2018-10-08 · 4 obs
○ 2017-02-09 23:40:04
● 2018-10-08 02:06:00
○ 2026-05-02 05:55:52
○ 2026-06-18 13:09:50
○NSbeta.ns.active24.cz2018-10-08 → 2018-10-08 · 4 obs
○ 2017-02-09 23:40:04
● 2018-10-08 02:06:00
○ 2026-05-02 05:55:52
○ 2026-06-18 13:09:50
○NSgama.ns.active24.sk2018-10-08 → 2018-10-08 · 4 obs
○ 2017-02-09 23:40:04
● 2018-10-08 02:06:00
○ 2026-05-02 05:55:52
○ 2026-06-18 13:09:50
○NSns.darkmay.com2016-03-01 → 2017-02-09 · 5 obs
○ 2015-11-26 03:52:32
● 2016-03-01 08:54:00
● 2017-02-09 23:40:04
○ 2018-10-08 02:06:00
○ 2026-06-18 13:09:50
○NSns.darkmay.cz2016-03-01 → 2017-02-09 · 5 obs
○ 2015-11-26 03:52:32
● 2016-03-01 08:54:00
● 2017-02-09 23:40:04
○ 2018-10-08 02:06:00
○ 2026-06-18 13:09:50
○NSns.rozhled.cz2015-07-25 → 2015-11-26 · 4 obs
● 2015-07-25 03:07:58
● 2015-11-26 03:52:32
○ 2016-03-01 08:54:00
○ 2026-06-18 13:09:50
○NSns.rozhled.eu2015-07-25 → 2015-11-26 · 4 obs
● 2015-07-25 03:07:58
● 2015-11-26 03:52:32
○ 2016-03-01 08:54:00
○ 2026-06-18 13:09:50
●NSns1.websupport.cz2026-05-02 → 2026-06-18 · 3 obs
○ 2018-10-08 02:06:00
● 2026-05-02 05:55:52
● 2026-06-18 13:09:50
●NSns2.websupport.cz2026-05-02 → 2026-06-18 · 3 obs
○ 2018-10-08 02:06:00
● 2026-05-02 05:55:52
● 2026-06-18 13:09:50
●NSns3.websupport.eu2026-05-02 → 2026-06-18 · 3 obs
○ 2018-10-08 02:06:00
● 2026-05-02 05:55:52
● 2026-06-18 13:09:50
○MXmail.cesys.eu2016-03-01 → 2017-02-09 · 5 obs
○ 2015-11-26 03:52:32
● 2016-03-01 08:54:00
● 2017-02-09 23:40:04
○ 2018-10-08 02:06:00
○ 2026-06-18 13:09:50
○MXmailin1.simholidays.com2026-05-02 → 2026-05-09 · 5 obs
○ 2018-10-08 02:06:00
● 2026-05-02 05:55:52
● 2026-05-09 11:59:12
○ 2026-05-13 01:00:30
○ 2026-06-18 13:09:50
○MXmailin2.simholidays.com2026-05-02 → 2026-05-09 · 5 obs
○ 2018-10-08 02:06:00
● 2026-05-02 05:55:52
● 2026-05-09 11:59:12
○ 2026-05-13 01:00:30
○ 2026-06-18 13:09:50
○MXmx.rozhled.cz2015-07-25 → 2015-11-26 · 4 obs
● 2015-07-25 03:07:58
● 2015-11-26 03:52:32
○ 2016-03-01 08:54:00
○ 2026-06-18 13:09:50
○MXmx.rozhled.net2015-07-25 → 2015-11-26 · 4 obs
● 2015-07-25 03:07:58
● 2015-11-26 03:52:32
○ 2016-03-01 08:54:00
○ 2026-06-18 13:09:50
○MXmx1.active24.com2018-10-08 → 2018-10-08 · 4 obs
○ 2017-02-09 23:40:04
● 2018-10-08 02:06:00
○ 2026-05-02 05:55:52
○ 2026-06-18 13:09:50
●MXmx10.active24.cz2026-05-13 → 2026-06-18 · 3 obs
○ 2026-05-09 11:59:12
● 2026-05-13 01:00:30
● 2026-06-18 13:09:50
○MXmx2.active24.com2018-10-08 → 2018-10-08 · 4 obs
○ 2017-02-09 23:40:04
● 2018-10-08 02:06:00
○ 2026-05-02 05:55:52
○ 2026-06-18 13:09:50
●MXmx20.active24.cz2026-05-13 → 2026-06-18 · 3 obs
○ 2026-05-09 11:59:12
● 2026-05-13 01:00:30
● 2026-06-18 13:09:50
○A178.238.43.2102016-03-01 → 2017-02-09 · 5 obs
○ 2015-11-26 03:52:32
● 2016-03-01 08:54:00
● 2017-02-09 23:40:04
○ 2018-10-08 02:06:00
○ 2026-06-18 13:09:50
●A81.0.206.1252018-10-08 → 2026-06-18 · 3 obs
○ 2017-02-09 23:40:04
● 2018-10-08 02:06:00
● 2026-06-18 13:09:50
○A81.31.47.1012015-07-25 → 2015-11-26 · 4 obs
● 2015-07-25 03:07:58
● 2015-11-26 03:52:32
○ 2016-03-01 08:54:00
○ 2026-06-18 13:09:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net...-
simholidays.comns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu-

✅ Authoritative Response

Server:45.10.97.13

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

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 483ms | Queries: -

📄 Records

TypeCountSample Data
A181.0.206.125
NS3ns1.websupport.cz, ns2.websupport.cz...
MX2mx10.active24.cz (pri: 10), mx20.active24.cz (pri: 100)
TXT1v=spf1 a mx include:_spf.websupport.cz -
SOA1ns1.websupport.cz admin.websupport.cz

Analysis

Hierarchy

simholidays.com serves as the parent of mailin2.simholidays.com and mailin1.simholidays.com.

IP Addresses

simholidays.com has exactly one IP address — 81.0.206.125.

mediadida.com, nedgem.com, shogunfight.eu plus two other host names have IP numbers in common with simholidays.com.

Name Servers

simholidays.com carries NS records delegating to ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

There is at least partial name server overlap between simholidays.com and other domains — jakvkuchyni.cz, enviplan.cz, dreamy.cz and two more among them.

ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu are three hostnames that each resolve to a pair of IP addresses: ns1.websupport.cz to 45.10.97.11 and 2a10:bbc0::11, ns2.websupport.cz to 185.71.159.12 and 2a02:250:3::12, and ns3.websupport.eu to 45.10.97.13 and 2a10:bbc0::13.

Mail Servers

simholidays.com uses two mail servers, mx10.active24.cz and mx20.active24.cz.

The mail server setup of simholidays.com matches that of other domains such as wolfdog.cz, radiokiks.sk, micromarket.cz and two others.

mx10.active24.cz and mx20.active24.cz both carry two IP addresses. The A records for mx10.active24.cz are 45.13.137.85 and 2a00:4b40:aaaa:2101:45:13:137:85; the A records for mx20.active24.cz are 45.13.137.86 and 2a00:4b40:aaaa:2101:45:13:137:86.