upb.cz - robtex.com

upb.cz

DNSSEC🔒 Signed (DS record present)
A2a00:4b40:aaaa:2011::5🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32
A37.9.175.213🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24
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
MXupb-cz.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::7🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db4pr02cu00307.inbound.protection.outlook.com
A2a01:111:f403:ca04::9🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00601.inbound.protection.outlook.com
A2a01:111:f403:ca09::3🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am6pr04cu00303.inbound.protection.outlook.com
A2a01:111:f403:ca09::5🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am1pr04cu00105.inbound.protection.outlook.com
A52.101.68.0🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db3pr0202cu00100.inbound.protection.outlook.com
A52.101.68.21🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00205.inbound.protection.outlook.com
A52.101.68.32🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db3pr0202cu00200.inbound.protection.outlook.com
A52.101.73.26🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as9pr05cu01302.inbound.protection.outlook.com
TXTMS=ms64611904
TXTv=DMARC1; p=reject; sp=reject; adkim=r; aspf=s; rua=mailto:hlaseni@vgd-tech.eu
TXTv=spf1 a ip4:212.24.152.138 ip4:81.95.96.90 ip6:2a02:4a8:ac24:102::96:90 incl...
SOAns1.websupport.czadmin@websupport.cz serial=1769086578

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=1771291036

Subdomains

gw.upb.cz
isell.upb.cz

Same first word

upb.mx
upb.edu.mx
upb.nl
upb.com.jo
upb.us
upb.at
upb.lv
upb.de
upb.ru
upb.biz
upb.co.za
upb.uk.com
upb.com.ua
upb.ro
upb.edu.ph
upb.edu
upb.se
upb.org
upb.be
upb.eu.com
upb.com
upb.cz
upb.eu
upb.ch
upb.es
upb.co
upb.si
upb.edu.co
upb.ci
upb.cc
upb.org.br
upb.no
upb.ac.id

Similar names

bpu.ca
ubp.us
pub.md
pub.ua
bup.gmbh
pub.com.vn
pub.church
pbu.com.cn
bup.ca
pub.net
pub.ch
bpu.edu.ua
bup.es
pub.ac.za
pub.com.au
bup.ch
ubp.spb.ru
bup.co.id
bup.de
bup.net
pbu.ch
pub.sa
bpu.link
pbu.lt
pbu.biz
pbu.es
pub.pt
bpu.es
ubp.co.nz
bup.in
bpu.ac.lk
bup.jp
pub.uk.net
pub.works
bup.center
ubp.edu.ar
bup.com.ua
pbu.at
pub.lt
pbu.de
bpu.com.ua
pub.de
bup.io
pub.com.pt
pub.dev
ubp.co
pub.or.kr
bup.me
pub.name
pub.net.br
pub.fyi
bpu.cn
ubp.cz
pub.lu
bpu.de
pub.it
pub.com.ua
pub.uy
pub.tv
pub.dk
pbu.nu
bpu.in
pbu.dk
bup.mx
pub.nf.ca
ubp.com
pub.es
bpu.ch
pub.la
pub.vin
bup.se
pub.events
bup.pt
bpu.co
pub.pl
pbu.nl
ubp.ro
bup.sk
pub.lc
pub.tw
pub.guide
bup.lt
pub.pink
ubp.info
pub.fi
pub.zone

DNS History

16 records (6 active, 10 former)

20162017201820192020202120222023202420252026NSns1.websupport.czns2.websupport.czns3.websupport.eualfa.ns.active24.czbeta.ns.active24.czdns.cap-net.czgama.ns.active24.sknames.cap-net.czMXupb-cz.mail.protection.outlook.comnames.cap-net.cztimmy.cap-net.czA2a00:4b40:aaaa:2011::537.9.175.2132a02:4a8:ac24:102::96:9081.31.45.9081.95.96.90
○NSalfa.ns.active24.cz2016-07-08 → 2021-05-18 · 5 obs
○ 2016-05-30 21:11:40
● 2016-07-08 21:23:32
● 2021-05-18 19:34:58
○ 2026-02-15 19:27:36
○ 2026-03-01 10:02:54
○NSbeta.ns.active24.cz2016-07-08 → 2021-05-18 · 5 obs
○ 2016-05-30 21:11:40
● 2016-07-08 21:23:32
● 2021-05-18 19:34:58
○ 2026-02-15 19:27:36
○ 2026-03-01 10:02:54
○NSdns.cap-net.cz2015-09-03 → 2016-05-30 · 4 obs
● 2015-09-03 13:38:10
● 2016-05-30 21:11:40
○ 2016-07-08 21:23:32
○ 2026-03-01 10:02:54
○NSgama.ns.active24.sk2016-07-08 → 2021-05-18 · 5 obs
○ 2016-05-30 21:11:40
● 2016-07-08 21:23:32
● 2021-05-18 19:34:58
○ 2026-02-15 19:27:36
○ 2026-03-01 10:02:54
○NSnames.cap-net.cz2015-09-03 → 2016-05-30 · 4 obs
● 2015-09-03 13:38:10
● 2016-05-30 21:11:40
○ 2016-07-08 21:23:32
○ 2026-03-01 10:02:54
●NSns1.websupport.cz2026-02-15 → 2026-03-01 · 3 obs
○ 2021-05-18 19:34:58
● 2026-02-15 19:27:36
● 2026-03-01 10:02:54
●NSns2.websupport.cz2026-02-15 → 2026-03-01 · 3 obs
○ 2021-05-18 19:34:58
● 2026-02-15 19:27:36
● 2026-03-01 10:02:54
●NSns3.websupport.eu2026-02-15 → 2026-03-01 · 3 obs
○ 2021-05-18 19:34:58
● 2026-02-15 19:27:36
● 2026-03-01 10:02:54
○MXnames.cap-net.cz2015-09-03 → 2016-07-16 · 4 obs
● 2015-09-03 13:38:10
● 2016-07-16 07:13:18
○ 2016-08-24 23:55:26
○ 2026-03-01 10:02:54
○MXtimmy.cap-net.cz2015-09-03 → 2016-07-16 · 4 obs
● 2015-09-03 13:38:10
● 2016-07-16 07:13:18
○ 2016-08-24 23:55:26
○ 2026-03-01 10:02:54
●MXupb-cz.mail.protection.outlook.com2016-08-24 → 2026-03-01 · 3 obs
○ 2016-07-16 07:13:18
● 2016-08-24 23:55:26
● 2026-03-01 10:02:54
●A2a00:4b40:aaaa:2011::52026-02-15 → 2026-03-01 · 3 obs
○ 2021-05-18 19:34:58
● 2026-02-15 19:27:36
● 2026-03-01 10:02:54
○A2a02:4a8:ac24:102::96:902020-11-13 → 2021-05-18 · 5 obs
○ 2016-12-19 13:01:06
● 2020-11-13 06:49:32
● 2021-05-18 19:34:58
○ 2026-02-15 19:27:36
○ 2026-03-01 10:02:54
●A37.9.175.2132026-02-15 → 2026-03-01 · 3 obs
○ 2021-05-18 19:34:58
● 2026-02-15 19:27:36
● 2026-03-01 10:02:54
○A81.31.45.902015-09-03 → 2016-12-19 · 4 obs
● 2015-09-03 13:38:10
● 2016-12-19 13:01:06
○ 2020-11-13 06:49:32
○ 2026-03-01 10:02:54
○A81.95.96.902020-11-13 → 2021-05-18 · 5 obs
○ 2016-12-19 13:01:06
● 2020-11-13 06:49:32
● 2021-05-18 19:34:58
○ 2026-02-15 19:27:36
○ 2026-03-01 10:02:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
upb.czns1.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: 957ms | Queries: -

📄 Records

TypeCountSample Data
A137.9.175.213
AAAA12a00:4b40:aaaa:2011::5
NS3ns1.websupport.cz, ns2.websupport.cz...
MX1upb-cz.mail.protection.outlook.com (pri:
TXT3MS=ms64611904, v=DMARC1; p=reject; sp=reject; adkim=r; ...
SOA1ns1.websupport.cz admin.websupport.cz

Analysis

Hierarchy

upb.cz is a parent of gw.upb.cz and isell.upb.cz.

IP Addresses

upb.cz resolves to two IP numbers: 2a00:4b40:aaaa:2011::5 and 37.9.175.213.

other host names including emporo.org, wolfdog.cz, ns.krivonet.cz, versta.cz and radiokiks.sk share IP numbers with upb.cz.

Name Servers

upb.cz is delegated to three name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

upb.cz at least partially shares name servers with other domains, for instance gramvousa.eu, pro8.cz, myenergis.jp, autoveterany.cz and aitee.net.

Host names with two IP numbers:

ns1.websupport.cz points to: 2a10:bbc0::11 and 45.10.97.11.

ns2.websupport.cz points to: 2a02:250:3::12 and 185.71.159.12.

ns3.websupport.eu points to: 2a10:bbc0::13 and 45.10.97.13.

Mail Servers

upb.cz is handled by a single mail server, upb-cz.mail.protection.outlook.com.

Host upb-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::7, 2a01:111:f403:ca04::9, 2a01:111:f403:ca09::3, 2a01:111:f403:ca09::5, 52.101.68.0, 52.101.68.21, 52.101.68.32 and 52.101.73.26.