mx1.slu.cz - robtex.com

mx1.slu.cz

DNSSEC⚠️ Not signed
A2001:718:2601:386::74🇨🇿 CESNET2001:718::/32 6-TCZ
PTRmx1.slu.cz
A193.84.206.116🇨🇿 CESNET193.84.192.0/20

slu.cz

DNSSEC🔒 Signed (DS record present)
A2001:718:2201:208::11🇨🇿 CESNET2001:718::/32 6-TCZ
A193.84.208.11🇨🇿 CESNET193.84.208.0/20
NSns1.slu.cz ⭐
NSdecsys.vsb.cz
NSns2.slu.cz
NSnsa.ces.net
MXmx1.slu.cz ⭐
MXmx2.slu.cz(20)
TXTv=spf1 mx include:spf.slu.cz include:spf.protection.outlook.com a:anxur.fi.mu...
TXTMS=ms67145611
TXTfacebook-domain-verification=8vjx70bk5qmonkyop2oql96vx4nmwj
TXTgoogle-site-verification=YgvvJLb2akH8OZ_ai1aKyojtfh3-TLFteSyvVGwn7PQ
SOAns1.slu.czhostmaster@slu.cz 2026-04-01 #57
WOT: SAFE (66/100)
rank #104291 globally
rank #306 in the tld
WOT: SAFE (80/100)
📈 Tranco rank: #53,360

PTR for

116.206.84.193.in-addr.arpa
4.7.0.0.0.0.0.0.0.0.0.0.0.0.0.0.6.8.3.0.1.0.6.2.8.1.7.0.1.0.0.2.ip6.arpa

MX for

fvp.slu.cz
fpf.slu.cz
opf.slu.cz
slu.cz
math.slu.cz

Same first word

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mx1.lt
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mx1.blogspot.com
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mx1.com.au
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mx1.sa.com
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mx1.biz
mx1.tv

Similar names

xm1.mobi
m1x.de
m1x.mobi
1mx.cn
xm1.club
1mx.eu
xm1.me
m1x.com
xm1.net
xm1.com
m1x.co.in
m1x.it
1mx.ru
xm1.cc
m1x.ch
1mx.net
1mx.me
x1m.nl
x1m.net
m1x.dk
m1x.ru
x1m.com
xm1.org
1mx.com.br
m1x.eu
1xm.de
1xm.ph
x1m.info
1xm.biz
m1x.net
1mx.de
x1m.de
1xm.ru
xm1.site
1xm.com
m1x.com.br
1mx.at
xm1.dnsalias.com
m1x.in
1mx.com
m1x.ca
1xm.org
xm1.de
m1x.app
1xm.net
1xm.co
xm1.ru

DNS History

2 records (2 active, 0 former)

A193.84.206.1162001:718:2601:386::74
●A193.84.206.1162026-02-15 → 2026-04-13 · 2 obs
● 2026-02-15 11:54:30
● 2026-04-13 02:57:58
●A2001:718:2601:386::742026-02-15 → 2026-04-13 · 2 obs
● 2026-02-15 11:54:30
● 2026-04-13 02:57:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz-
slu.czns1.slu.cz, ns2.slu.cz, nsa.ces.net, decsys.vsb.cz6 records

✅ Authoritative Response

Server:193.84.209.5

NS records: ns1.slu.cz, ns2.slu.cz, nsa.ces.net, decsys.vsb.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1113ms | Queries: -

📄 Records

TypeCountSample Data
A1193.84.206.116
AAAA12001:718:2601:386::74

📌 Glue Records Collected

Total: 6

In-bailiwick: 4 (ns1.slu.cz, ns1.slu.cz, ns2.slu.cz...)

Out-of-bailiwick: 2 (decsys.vsb.cz, decsys.vsb.cz)

Analysis

Mail Server Role

mx1.slu.cz serves as the mail server for fvp.slu.cz, fpf.slu.cz, opf.slu.cz, slu.cz and math.slu.cz.

mx2.slu.cz commonly serves as a mail server together with mx1.slu.cz.

IP Addresses

mx1.slu.cz points to two IP numbers: 2001:718:2601:386::74 and 193.84.206.116.