cdprovas.cz - robtex.com
cdprovas.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 82.117.140.18🇨🇿 CDT-AS82.117.128.0/19 CD-Telematika a.s. The Czech Republic | ||||||
| NS | ns1.cdt.cz ⭐ | ||||||
| A | 2001:1a48:0:1::2🇨🇿 CDT-AS2001:1a48::/32 CD-Telematika a.s. The Czech Republic | ||||||
| PTR | ns1.cdt.cz | ||||||
| A | 81.19.33.2🇨🇿 CDT-AS81.19.32.0/20 CD-Telematika a.s. The Czech Republic | ||||||
| PTR | ns1.cdt.cz | ||||||
| NS | ns2.cdt.cz | ||||||
| A | 2001:1a48:0:2::2🇨🇿 CDT-AS2001:1a48::/32 CD-Telematika a.s. The Czech Republic | ||||||
| PTR | ns2.cdt.cz | ||||||
| A | 81.19.34.2🇨🇿 CDT-AS81.19.32.0/20 CD-Telematika a.s. The Czech Republic | ||||||
| PTR | ns2.cdt.cz | ||||||
| MX | smtp.cdtnet.cz ⭐ | ||||||
| A | 82.117.148.199🇨🇿 CDT-AS82.117.128.0/19 CD-Telematika a.s. The Czech Republic | ||||||
| PTR | smtp.cdtnet.cz | ||||||
| TXT | v=spf1 mx include:_spf.all.ebrana.cz a:smtp.cdtnet.cz ip4:82.117.128.37/32 ip... | ||||||
| SOA | ns1.cdt.czhostmaster@cdt.cz 2025-11-18 #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=1778518038 | ||||||
Same first word
cdprovas.cz |
DNS History
11 records (4 active, 7 former)
○NSns01.dmz.cdisnet.cz2015-07-16 → 2017-04-10 · 8 obs
○ 2015-11-22 03:51:52
● 2016-02-23 07:43:38
○ 2016-07-01 08:39:36
● 2016-10-13 07:10:52
● 2017-04-10 17:33:22
○ 2026-02-26 18:48:06
○ 2026-05-11 17:04:54
○NSns02.dmz.cdisnet.cz2015-07-16 → 2017-04-10 · 8 obs
● 2015-11-22 03:51:52
○ 2016-02-23 07:43:38
● 2016-07-01 08:39:36
○ 2016-10-13 07:10:52
● 2017-04-10 17:33:22
○ 2026-02-26 18:48:06
○ 2026-05-11 17:04:54
●NSns1.cdt.cz2026-02-26 → 2026-05-11 · 3 obs
● 2026-02-26 18:48:06
● 2026-05-11 17:04:54
●NSns2.cdt.cz2026-02-26 → 2026-05-11 · 3 obs
● 2026-02-26 18:48:06
● 2026-05-11 17:04:54
○MXmail-i01.dmz.cd.cz2015-07-16 → 2016-02-23 · 4 obs
● 2016-02-23 07:43:38
○ 2016-07-01 08:39:36
○ 2026-05-11 17:04:54
○MXns-i01.dmz.cd.cz2015-07-16 → 2016-02-23 · 4 obs
● 2016-02-23 07:43:38
○ 2016-07-01 08:39:36
○ 2026-05-11 17:04:54
○MXsis0000phaux801.ecps.cz2016-07-01 → 2017-04-10 · 5 obs
● 2016-07-01 08:39:36
● 2017-04-10 17:33:22
○ 2026-02-26 18:48:06
○ 2026-05-11 17:04:54
○MXsis0000phaux821.ecps.cz2016-07-01 → 2017-04-10 · 5 obs
● 2016-07-01 08:39:36
● 2017-04-10 17:33:22
○ 2026-02-26 18:48:06
○ 2026-05-11 17:04:54
●MXsmtp.cdtnet.cz2026-02-26 → 2026-05-11 · 3 obs
● 2026-02-26 18:48:06
● 2026-05-11 17:04:54
○A109.205.75.422015-07-16 → 2017-04-10 · 4 obs
● 2017-04-10 17:33:22
○ 2026-02-26 18:48:06
○ 2026-05-11 17:04:54
●A82.117.140.182026-02-26 → 2026-05-11 · 3 obs
● 2026-02-26 18:48:06
● 2026-05-11 17:04:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| cdprovas.cz | ns1.cdt.cz, ns2.cdt.cz | 4 records |
✅ Authoritative Response
Server:81.19.34.2
NS records: ns1.cdt.cz, ns2.cdt.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cdprovas.cz (unsigned zone)
⏱️ Timing
Total: 1020ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 82.117.140.18 |
| NS | 2 | ns1.cdt.cz, ns2.cdt.cz |
| MX | 1 | smtp.cdtnet.cz (pri: 10) |
| TXT | 1 | v=spf1 mx include:_spf.all.ebrana.cz a:s |
| SOA | 1 | ns1.cdt.cz hostmaster.cdt.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.cdt.cz, ns1.cdt.cz, ns2.cdt.cz...)
Analysis
IP Addresses
cdprovas.cz points to a single IP number: 82.117.140.18.
Other host names, for instance ceskedrahy.cz, share IP numbers with cdprovas.cz.
Name Servers
Delegation for cdprovas.cz rests with two name servers, ns1.cdt.cz and ns2.cdt.cz.
cdprovas.cz shares the same name server setup as other domains, including cdcnet.cz, cd.cz, cdwifi.cz, cd-t.cz and cdelfik.cz.
cdprovas.cz at least partially shares name servers with other domains, for instance wcservis.com, 156.235.213.in-addr.arpa, 124.146.195.in-addr.arpa, 96.146.195.in-addr.arpa and 124.11.212.in-addr.arpa.
These name servers are often used together with ns.cdt.cz, dns.alberon.cz, ns1.mirnet.cz, ns.vlada.cz and nssec.vlada.cz.
Host names with two IP numbers: ns1.cdt.cz points to 2001:1a48:0:1::2 and 81.19.33.2; ns2.cdt.cz points to 2001:1a48:0:2::2 and 81.19.34.2.
Mail Servers
cdprovas.cz is handled by a single mail server, smtp.cdtnet.cz.
cdprovas.cz uses the same mail server configuration as other domains, such as cis.cd.cz, ldgw.cd.cz, cdmuzeum.cz, cdnostalgie.cz and cdcnet.cz.
smtp.cdtnet.cz points to a single IP: 82.117.148.199.