ssmj.cz - robtex.com

ssmj.cz

DNSSEC🔒 Signed (DS record present)
A2001:1528:279:0:217:11:227:76🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRbackup.antee.cz
A217.11.227.76🇨🇿 CASABLANCA-AS217.11.227.0/24 Casablanca INT
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
MXssmj-cz.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::b🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-dbbpr03cu00103.inbound.protection.outlook.com
A2a01:111:f403:ca04::f🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00507.inbound.protection.outlook.com
A2a01:111:f403:ca09::4🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am0pr04cu00504.inbound.protection.outlook.com
A2a01:111:f403:ca09::8🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A52.101.68.16🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db4pr02cu00400.inbound.protection.outlook.com
A52.101.73.12🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am4pr0401cu00104.inbound.protection.outlook.com
A52.101.73.19🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr04cu00803.inbound.protection.outlook.com
A52.101.73.28🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00204.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com -all
SOAns.forpsi.netadmin@forpsi.com 2026-08-03 #1

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=1786110443

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DNS History

12 records (6 active, 6 former)

20162017201820192020202120222023202420252026NSns.forpsi.czns.forpsi.itns.forpsi.netpublic.mos.jicin.czstart.mos.jicin.czMXssmj-cz.mail.protection.outlook.commesto.mos.jicin.czstart.mos.jicin.czA2001:1528:279:0:217:11:227:76217.11.227.76193.32.56.9862.109.134.90
●NSns.forpsi.cz2021-09-14 → 2026-08-07 · 3 obs
○ 2017-06-27 16:01:48
● 2021-09-14 23:25:12
● 2026-08-07 14:33:56
●NSns.forpsi.it2021-09-14 → 2026-08-07 · 3 obs
○ 2017-06-27 16:01:48
● 2021-09-14 23:25:12
● 2026-08-07 14:33:56
●NSns.forpsi.net2021-09-14 → 2026-08-07 · 3 obs
○ 2017-06-27 16:01:48
● 2021-09-14 23:25:12
● 2026-08-07 14:33:56
○NSpublic.mos.jicin.cz2015-08-15 → 2017-06-27 · 4 obs
● 2015-08-15 20:30:22
● 2017-06-27 16:01:48
○ 2021-09-14 23:25:12
○ 2026-08-07 14:33:56
○NSstart.mos.jicin.cz2015-08-15 → 2017-06-27 · 4 obs
● 2015-08-15 20:30:22
● 2017-06-27 16:01:48
○ 2021-09-14 23:25:12
○ 2026-08-07 14:33:56
○MXmesto.mos.jicin.cz2015-08-15 → 2016-07-04 · 4 obs
● 2015-08-15 20:30:22
● 2016-07-04 13:57:28
○ 2017-06-27 16:01:48
○ 2026-08-07 14:33:56
●MXssmj-cz.mail.protection.outlook.com2021-09-14 → 2026-08-07 · 3 obs
○ 2017-06-27 16:01:48
● 2021-09-14 23:25:12
● 2026-08-07 14:33:56
○MXstart.mos.jicin.cz2017-06-27 → 2017-06-27 · 4 obs
○ 2016-07-04 13:57:28
● 2017-06-27 16:01:48
○ 2021-09-14 23:25:12
○ 2026-08-07 14:33:56
○A193.32.56.982015-08-15 → 2017-06-27 · 4 obs
● 2015-08-15 20:30:22
● 2017-06-27 16:01:48
○ 2021-09-14 23:25:12
○ 2026-08-07 14:33:56
●A2001:1528:279:0:217:11:227:762026-06-13 → 2026-08-07 · 3 obs
○ 2021-09-14 23:25:12
● 2026-06-13 03:36:06
● 2026-08-07 14:33:56
●A217.11.227.762026-06-13 → 2026-08-07 · 3 obs
○ 2021-09-14 23:25:12
● 2026-06-13 03:36:06
● 2026-08-07 14:33:56
○A62.109.134.902021-09-14 → 2021-09-14 · 4 obs
○ 2017-06-27 16:01:48
● 2021-09-14 23:25:12
○ 2026-06-13 03:36:06
○ 2026-08-07 14:33:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz8 records
ssmj.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: 1209ms | Queries: -

📄 Records

TypeCountSample Data
A1217.11.227.76
AAAA12001:1528:279:0:217:11:227:76
NS3ns.forpsi.cz, ns.forpsi.it...
MX1ssmj-cz.mail.protection.outlook.com (pri
TXT1v=spf1 include:spf.protection.outlook.co
SOA1ns.forpsi.net admin.forpsi.com

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)

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

Analysis

IP Addresses

ssmj.cz directs to two IP numbers, 217.11.227.76 and 2001:1528:279:0:217:11:227:76

zsosek.cz, chroustov.cz, tuhan.cz plus two other host names have IP numbers in common with ssmj.cz.

Name Servers

ssmj.cz carries NS records delegating to ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.

ssmj.cz partially shares its NS delegation with several other domains, including avcar.cz, zyma.cz, adminek.cz and two others.

These name servers often co-occur with the name servers ns.forpsi.us.

ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net are three hostnames that each resolve to a pair of IP addresses: ns.forpsi.cz to 81.2.209.185 and 2001:15e8:201:1::d1b9, ns.forpsi.it to 95.110.254.165 and 2a00:6d41:2:1::5, and ns.forpsi.net to 81.2.194.130 and 2001:15e8:101:1::c282.

Mail Servers

ssmj.cz uses one mail server — ssmj-cz.mail.protection.outlook.com.

ssmj-cz.mail.protection.outlook.com has 8 IP addresses: 52.101.68.16, 52.101.73.12, 52.101.73.19 plus 5 more.