mailserver.cz - robtex.com
mailserver.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 95.168.205.16🇨🇿 SuperNetwork95.168.192.0/19 s.r.o. | ||||||
| PTR | mail16.skrz.cz | ||||||
| NS | dns1.ttc.cz.apptocloud.net ⭐ | ||||||
| A | 185.138.220.7🇨🇿 AppToCloud185.138.220.0/23 | ||||||
| PTR | dns1.ttc.cz.apptocloud.net | ||||||
| NS | dns1.h90.cz.apptocloud.net | ||||||
| A | 130.185.180.216🇨🇿 IGNUM-AS130.185.180.0/23 AppToCloud network | ||||||
| PTR | dns1.h90.cz.apptocloud.net | ||||||
| NS | dns2.ttc.cz.apptocloud.net | ||||||
| A | 185.138.220.8🇨🇿 AppToCloud185.138.220.0/23 | ||||||
| PTR | dns2.ttc.cz.apptocloud.net | ||||||
| MX | mail.mailserver.cz ⭐ | ||||||
| A | 95.168.205.16🇨🇿 SuperNetwork95.168.192.0/19 s.r.o. | ||||||
| PTR | mail16.skrz.cz | ||||||
| SOA | dns1.ttc.cz.apptocloud.netinfo@apptocloud.com.mailserver.cz 2016-10-14 #1 | ||||||
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=1783968440 | ||||||
Subdomains
mail.mailserver.cz |
Same first word
Similar names
DNS History
7 records (5 active, 2 former)
○NSdns.icewarp.cz2015-08-13 → 2015-08-13 · 3 obs
○ 2015-10-25 22:33:36
○ 2026-07-13 19:35:18
●NSdns1.h90.cz.apptocloud.net2017-01-09 → 2026-07-13 · 3 obs
● 2017-01-09 04:27:48
● 2026-07-13 19:35:18
●NSdns1.ttc.cz.apptocloud.net2017-01-09 → 2026-07-13 · 3 obs
● 2017-01-09 04:27:48
● 2026-07-13 19:35:18
●NSdns2.ttc.cz.apptocloud.net2017-01-09 → 2026-07-13 · 3 obs
● 2017-01-09 04:27:48
● 2026-07-13 19:35:18
○NSleonardo2015-08-13 → 2016-05-18 · 4 obs
● 2016-05-18 20:06:30
○ 2017-01-09 04:27:48
○ 2026-07-13 19:35:18
●MXmail.mailserver.cz2015-08-13 → 2026-07-13 · 2 obs
● 2026-07-13 19:35:18
●A95.168.205.162015-08-13 → 2026-07-13 · 2 obs
● 2026-07-13 19:35:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| mailserver.cz | dns1.h90.cz.apptocloud.net, dns1.ttc.cz.apptocloud.net, dns2.ttc.cz.apptocloud.net | - |
✅ Authoritative Response
Server:185.138.220.7
NS records: dns1.h90.cz.apptocloud.net, dns1.ttc.cz.apptocloud.net, dns2.ttc.cz.apptocloud.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mailserver.cz (unsigned zone)
⏱️ Timing
Total: 1497ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 95.168.205.16 |
| NS | 3 | dns1.ttc.cz.apptocloud.net, dns2.ttc.cz.apptocloud.net... |
| MX | 1 | mail.mailserver.cz (pri: 10) |
| SOA | 1 | dns1.ttc.cz.apptocloud.net info.apptoclo |
Analysis
Hierarchy
mailserver.cz is a parent domain of mail.mailserver.cz.
IP Addresses
mailserver.cz has exactly one IP address — 95.168.205.16.
Host names such as mail.mailserver.cz and mail16.skrz.cz share IP numbers with mailserver.cz.
Name Servers
Three name servers are authoritative for mailserver.cz: dns1.h90.cz.apptocloud.net, dns1.ttc.cz.apptocloud.net and dns2.ttc.cz.apptocloud.net.
mailserver.cz shares at least some of its name servers with other domains, including onice.io, 217.119.185.in-addr.arpa, 216.119.185.in-addr.arpa and two others.
These name servers are frequently seen alongside the name servers dnsmaster.ttc.cz.apptocloud.net.
Three hostnames, one IP address apiece: dns1.h90.cz.apptocloud.net resolves to 130.185.180.216, dns1.ttc.cz.apptocloud.net resolves to 185.138.220.7 and dns2.ttc.cz.apptocloud.net resolves to 185.138.220.8.
Mail Servers
mailserver.cz uses one mail server — mail.mailserver.cz.
mailserver.cz shares at least some of its mail servers with other domains, such as guverner.cz and merenispotreby.cz.
These mail servers tend to be used in conjunction with the mail servers smtp.fspnet.cz.
There is one IP number for mail.mailserver.cz: 95.168.205.16.