mail.supportedu.cz - robtex.com

mail.supportedu.cz

CNAMEsupportedu.cz
DNSSEC🔒 Signed (DS record present)
A2001:880:0:15::235🇩🇪 ONE-NETWORK2001:880::/32
PTRdw352.webglobe.com
A185.102.21.193🇨🇿 ONE-NETWORK185.102.21.0/24
NSns.forpsi.net ⭐
A2001:15e8:101:1::c282🇨🇿 INTERNET-CZ2001:15e8::/32
PTRns.forpsi.net
A81.2.194.130🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s.
PTRns.forpsi.net
NSns.forpsi.cz
A2001:15e8:201:1::d1b9🇨🇿 INTERNET-CZ2001:15e8::/32
PTRns.forpsi.cz
A81.2.209.185🇨🇿 INTERNET-CZ81.2.209.0/24
PTRns.forpsi.cz
NSns.forpsi.it
A2a00:6d41:2:1::5🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network
PTRns.forpsi.it
A95.110.254.165🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network
PTRhost165-254-110-95.serverdedicati.aruba.it
MXb207611d5a26a0e3.mx1.emailprofi.seznam.cz ⭐
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
MXb207611d5a26a0e3.mx2.emailprofi.seznam.cz(20)
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
SOAns.forpsi.netadmin@forpsi.com 2026-04-09 #1

supportedu.cz

DNSSEC🔒 Signed (DS record present)
A2001:880:0:15::235🇩🇪 ONE-NETWORK2001:880::/32
A185.102.21.193🇨🇿 ONE-NETWORK185.102.21.0/24
NSns.forpsi.net ⭐
NSns.forpsi.cz
NSns.forpsi.it
MXb207611d5a26a0e3.mx1.emailprofi.seznam.cz ⭐
MXb207611d5a26a0e3.mx2.emailprofi.seznam.cz(20)
SOAns.forpsi.netadmin@forpsi.com 2026-04-09 #1

Previously MX for

supportedu.cz

Same first word

mail.sh
mail.nom.za
mail.com.br
mail.com.ph
mail.co.ua
mail.bike
mail.gr
mail.srv.br
mail.dyn-vpn.de
mail.serveminecraft.net
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mail.et
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mail.fakefur.jp
mail.sb
mail.ht
mail.ax
mail.spdns.eu
mail.collegefan.org
mail.com.cn
mail.cab
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mail.tm
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mail.co.za
mail.zp.ua
mail.ac.me
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mail.mysecuritycamera.org
mail.gov.ua
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DNS History

2 records (1 active, 1 former)

20162017201820192020202120222023202420252026A46.167.236.8CNAMEsupportedu.cz
○A46.167.236.82015-06-23 → 2016-04-15 · 3 obs
● 2015-06-23 10:19:20
● 2016-04-15 17:19:38
○ 2026-04-14 10:17:06
●CNAMEsupportedu.cz2026-04-14 → 2026-04-14 · 1 obs
● 2026-04-14 10:17:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz-
supportedu.czns.forpsi.cz, ns.forpsi.it, ns.forpsi.net2 records

✅ Authoritative Response

Server:81.2.194.130

NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1242ms | Queries: -

📄 Records

TypeCountSample Data
CNAME1supportedu.cz

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)

Analysis

IP Addresses

mail.supportedu.cz points to two IP numbers: 2001:880:0:15::235 and 185.102.21.193.

Other host names, for instance wordpress-moduly.cz, pavekmachinery.cz, web.madametussaudsprague.extdns.wa.cz, studentsprague.com and nestar.net share IP numbers with mail.supportedu.cz.

Name Servers

The domain mail.supportedu.cz is delegated to three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.

mail.supportedu.cz shares name servers with other domains at least partially, for instance korh.cz, lipa-resort.cz, realitygemini.cz, in-spirace.com and rko.cz.

these name servers are often used together with the name servers ns.forpsi.us.

Host names with two IP numbers:

ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185

ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165

ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130

Mail Servers

mail.supportedu.cz is handled by two mail servers: b207611d5a26a0e3.mx1.emailprofi.seznam.cz and b207611d5a26a0e3.mx2.emailprofi.seznam.cz.

mail.supportedu.cz uses the same mail server setup as other domains, for example supportedu.cz.

Host names with two IP numbers:

The host b207611d5a26a0e3.mx1.emailprofi.seznam.cz points to 2a02:598:2::1056 and 77.75.77.56.

The host b207611d5a26a0e3.mx2.emailprofi.seznam.cz points to 2a02:598:2::1146 and 77.75.77.146.