unity.cz - dns.ninja
unity.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.145.160.74🇨🇿 MASTER-AS185.145.160.0/22 CZ-ETNETERA-20160401 | ||||||
| PTR | 185-145-160-74.static.mit.etn.cz | ||||||
| NS | dns.iol.cz ⭐ | ||||||
| A | 2a00:1028:100:102::61🇨🇿 O2-CZECH-REPUBLIC2a00:1028::/32 O2 CZ | ||||||
| PTR | dns.iol.cz | ||||||
| A | 194.228.2.61🇨🇿 O2-CZECH-REPUBLIC194.228.0.0/17 CZ.CZNET | ||||||
| PTR | dns.iol.cz | ||||||
| NS | ns2.tel.cz | ||||||
| A | 2a00:1028:1:205::2🇨🇿 O2-CZECH-REPUBLIC2a00:1028::/32 O2 CZ | ||||||
| PTR | ns2.tel.cz | ||||||
| A | 194.228.2.1🇨🇿 O2-CZECH-REPUBLIC194.228.0.0/17 CZ.CZNET | ||||||
| PTR | ns2.tel.cz | ||||||
| MX | mx1.airbank.cz ⭐ | ||||||
| A | 80.188.97.69🇨🇿 O2-CZECH-REPUBLIC80.188.0.0/17 CZ.CZNET | ||||||
| PTR | mx1.airbank.cz | ||||||
| MX | mx2.airbank.cz(20) | ||||||
| A | 193.165.169.163🇨🇿 PODA-AS193.165.0.0/16 PODA a.s. IPv4 | ||||||
| PTR | mx2.airbank.cz | ||||||
| MX | mx3.airbank.cz(30) | ||||||
| A | 193.165.201.45🇨🇿 PODA-AS193.165.0.0/16 PODA a.s. IPv4 | ||||||
| PTR | mx3.airbank.cz | ||||||
| TXT | v=spf1 ip4:80.188.97.69 ip4:193.165.169.163 ip4:193.165.201.45 ip4:80.188.97.... | ||||||
| TXT | google-site-verification=-Of9xOqfU9r69HmWz2cbIgOImp0QjLBp-scpH93_Ar8 | ||||||
| TXT | MS=ms52587547 | ||||||
| TXT | _u54dyqaqgtg14lq6ech6wrhbx7iqok3 | ||||||
| SOA | dns.iol.czhostmaster@iol.cz 2026-06-24 #0 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1784332040 | ||||||
Same first word
Similar names
DNS History
17 records (6 active, 11 former)
●NSdns.iol.cz2026-03-11 → 2026-07-18 · 3 obs
● 2026-03-11 16:27:08
● 2026-07-18 00:44:06
○NSns.forpsi.cz2017-06-12 → 2017-06-12 · 4 obs
● 2017-06-12 16:08:58
○ 2026-03-11 16:27:08
○ 2026-07-18 00:44:06
○NSns.forpsi.it2017-06-12 → 2017-06-12 · 4 obs
● 2017-06-12 16:08:58
○ 2026-03-11 16:27:08
○ 2026-07-18 00:44:06
○NSns.forpsi.net2017-06-12 → 2017-06-12 · 4 obs
● 2017-06-12 16:08:58
○ 2026-03-11 16:27:08
○ 2026-07-18 00:44:06
○NSns1.tele3.cz2015-05-02 → 2016-03-21 · 4 obs
● 2016-03-21 19:38:46
○ 2017-06-12 16:08:58
○ 2026-07-18 00:44:06
●NSns2.tel.cz2026-03-11 → 2026-07-18 · 3 obs
● 2026-03-11 16:27:08
● 2026-07-18 00:44:06
○NSns2.tele3.cz2015-05-02 → 2016-03-21 · 4 obs
● 2016-03-21 19:38:46
○ 2017-06-12 16:08:58
○ 2026-07-18 00:44:06
○NSns3.tele3.cz2015-05-02 → 2016-03-21 · 4 obs
● 2016-03-21 19:38:46
○ 2017-06-12 16:08:58
○ 2026-07-18 00:44:06
○NSns4.tele3.eu2015-10-09 → 2016-03-21 · 5 obs
● 2015-10-09 04:03:10
● 2016-03-21 19:38:46
○ 2017-06-12 16:08:58
○ 2026-07-18 00:44:06
○NSns4.tele3.sk2015-05-02 → 2015-05-02 · 3 obs
○ 2015-10-09 04:03:10
○ 2026-07-18 00:44:06
○MXmail.mediaster.cz2017-06-12 → 2017-06-12 · 3 obs
○ 2026-03-11 16:27:08
○ 2026-07-18 00:44:06
●MXmx1.airbank.cz2026-03-11 → 2026-07-18 · 3 obs
● 2026-03-11 16:27:08
● 2026-07-18 00:44:06
●MXmx2.airbank.cz2026-03-11 → 2026-07-18 · 3 obs
● 2026-03-11 16:27:08
● 2026-07-18 00:44:06
●MXmx3.airbank.cz2026-03-11 → 2026-07-18 · 3 obs
● 2026-03-11 16:27:08
● 2026-07-18 00:44:06
●A185.145.160.742026-03-11 → 2026-07-18 · 3 obs
● 2026-03-11 16:27:08
● 2026-07-18 00:44:06
○A88.146.242.1832015-05-02 → 2016-03-21 · 4 obs
● 2016-03-21 19:38:46
○ 2017-06-12 16:08:58
○ 2026-07-18 00:44:06
○A91.219.247.172017-06-12 → 2017-06-12 · 4 obs
● 2017-06-12 16:08:58
○ 2026-03-11 16:27:08
○ 2026-07-18 00:44:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| unity.cz | dns.iol.cz, ns2.tel.cz | 4 records |
✅ Authoritative Response
Server:194.228.2.1
NS records: dns.iol.cz, ns2.tel.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for unity.cz (unsigned zone)
⏱️ Timing
Total: 1260ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.145.160.74 |
| NS | 2 | ns2.tel.cz, dns.iol.cz |
| MX | 3 | mx1.airbank.cz (pri: 10), mx2.airbank.cz (pri: 20)... |
| TXT | 4 | v=spf1 ip4:80.188.97.69 ip4:193.165.169., MS=ms52587547... |
| SOA | 1 | dns.iol.cz hostmaster.iol.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (dns.iol.cz, dns.iol.cz, ns2.tel.cz...)
Analysis
IP Addresses
unity.cz resolves to just one IP address, 185.145.160.74.
Other host names share IP numbers with unity.cz; 185-145-160-74.static.mit.etn.cz is one such example.
Name Servers
unity.cz is served by two delegated name servers, dns.iol.cz and ns2.tel.cz.
unity.cz shares its NS records with other domains, for example eduportal.eu, 150.102.88.in-addr.arpa, 104.208.83.in-addr.arpa and two others.
The DNS delegation for unity.cz at least partly coincides with that of other domains, sk.o2.com being one example.
These name servers are frequently paired with the name servers ns1.sk.o2.com and ns2.sk.o2.com.
Each of the two host names carries two IP addresses: dns.iol.cz points to 194.228.2.61 and 2a00:1028:100:102::61, and ns2.tel.cz points to 194.228.2.1 and 2a00:1028:1:205::2.
Mail Servers
unity.cz is handled by three mail servers: mx1.airbank.cz, mx2.airbank.cz and mx3.airbank.cz.
There is at least a partial MX overlap between unity.cz and other domains, including zonky.cz, myair.cz, airbank.cz and two others.
Three hostnames, one IP address apiece: mx1.airbank.cz resolves to 80.188.97.69, mx2.airbank.cz resolves to 193.165.169.163 and mx3.airbank.cz resolves to 193.165.201.45.