kstudanka.cz - robtex.com
kstudanka.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a00:d940:0:3::199🇨🇿 OptoNet-AS2a00:d940::/32 CZ-OPTONET-IPv6_20120412 | ||||||
| PTR | webhouse.cz | ||||||
| A | 78.156.158.199🇨🇿 OptoNet-AS78.156.128.0/19 CZ-OPTONET-20070816 | ||||||
| NS | ns1.webhouse.cz ⭐ | ||||||
| A | 2a00:d940:0:3::210🇨🇿 OptoNet-AS2a00:d940::/32 CZ-OPTONET-IPv6_20120412 | ||||||
| PTR | webhouse.cz | ||||||
| PTR | mail.webhouse.cz | ||||||
| A | 78.156.158.210🇨🇿 OptoNet-AS78.156.128.0/19 CZ-OPTONET-20070816 | ||||||
| PTR | mail.webhouse.cz | ||||||
| NS | ns2.webhouse.cz | ||||||
| A | 2a00:d940:0:3::84🇨🇿 OptoNet-AS2a00:d940::/32 CZ-OPTONET-IPv6_20120412 | ||||||
| PTR | cd.webhouse.cz | ||||||
| A | 78.156.158.84🇨🇿 OptoNet-AS78.156.128.0/19 CZ-OPTONET-20070816 | ||||||
| PTR | cd.webhouse.cz | ||||||
| MX | mail.kstudanka.cz ⭐ | ||||||
| A | 78.156.158.210🇨🇿 OptoNet-AS78.156.128.0/19 CZ-OPTONET-20070816 | ||||||
| PTR | mail.webhouse.cz | ||||||
| MX | mailp.webhouse.cz(20) | ||||||
| A | 2a00:d940:0:3::217🇨🇿 OptoNet-AS2a00:d940::/32 CZ-OPTONET-IPv6_20120412 | ||||||
| PTR | webhouse.cz | ||||||
| A | 78.156.158.217🇨🇿 OptoNet-AS78.156.128.0/19 CZ-OPTONET-20070816 | ||||||
| PTR | mailp.webhouse.cz | ||||||
| TXT | v=spf1 mx a include:_spf.vshosting.cloud include:_spf.webhouse.cz ~all | ||||||
| SOA | ns1.webhouse.czhostmaster@webhouse.cz serial=2008103354 | ||||||
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=1774847836 | ||||||
Subdomains
mail.kstudanka.cz |
Same first word
kstudanka.cz |
Similar names
DNS History
7 records (6 active, 1 former)
●NSns1.webhouse.cz2015-06-03 → 2026-03-30 · 2 obs
● 2026-03-30 05:50:08
●NSns2.webhouse.cz2015-06-03 → 2026-03-30 · 2 obs
● 2026-03-30 05:50:08
●MXmail.kstudanka.cz2015-06-03 → 2026-03-30 · 2 obs
● 2026-03-30 05:50:08
●MXmailp.webhouse.cz2026-03-02 → 2026-03-30 · 3 obs
● 2026-03-02 15:35:46
● 2026-03-30 05:50:08
●A2a00:d940:0:3::1992026-03-02 → 2026-03-30 · 3 obs
● 2026-03-02 15:35:46
● 2026-03-30 05:50:08
●A78.156.158.1992026-03-02 → 2026-03-30 · 3 obs
● 2026-03-02 15:35:46
● 2026-03-30 05:50:08
○A78.156.158.812015-06-03 → 2017-04-18 · 4 obs
● 2017-04-18 16:54:40
○ 2026-03-02 15:35:46
○ 2026-03-30 05:50:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| kstudanka.cz | ns1.webhouse.cz, ns2.webhouse.cz | 2 records |
✅ Authoritative Response
Server:78.156.158.210
NS records: ns1.webhouse.cz, ns2.webhouse.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1074ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 78.156.158.199 |
| AAAA | 1 | 2a00:d940:0:3::199 |
| NS | 2 | ns2.webhouse.cz, ns1.webhouse.cz |
| MX | 2 | mail.kstudanka.cz (pri: 10), mailp.webhouse.cz (pri: 20) |
| TXT | 1 | v=spf1 mx a include:_spf.vshosting.cloud |
| SOA | 1 | ns1.webhouse.cz hostmaster.webhouse.cz |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.webhouse.cz, ns2.webhouse.cz)
Analysis
Hierarchy
The parent of mail.kstudanka.cz is kstudanka.cz.
IP Addresses
Two IP numbers are pointed to by kstudanka.cz: 2a00:d940:0:3::199 and 78.156.158.199.
other host names include prague15.eu, merotin.cz, dudin.cz, ruda.cz and wifi2su-gw.suchdol.cz; they share IP numbers with kstudanka.cz.
Name Servers
Two name servers ns1.webhouse.cz and ns2.webhouse.cz handle the delegation for kstudanka.cz.
kstudanka.cz shares the same name server setup as other domains, for instance libotenice.cz, greslovemyto.cz, mestysliten.cz, obec-uhercice.cz and vyskov-mesto.cz.
Host names with two IP numbers:
ns1.webhouse.cz points to 2a00:d940:0:3::210 and 78.156.158.210.
ns2.webhouse.cz points to 2a00:d940:0:3::84 and 78.156.158.84.
Mail Servers
kstudanka.cz is handled by two mail servers: mail.kstudanka.cz and mailp.webhouse.cz.
kstudanka.cz shares at least partially some mail servers with other domains, for instance bela.cz, hluboke.cz, rtyne.cz, rychnov-city.cz and mestovsetin.cz.
these mail servers are commonly used alongside the mail servers in0.obce.cz, mail.hluboke.cz, mail.rychnov-city.cz, mail.webhouse.cz, mx1.mestovsetin.cz, mail.vys-edu.cz and posta.broumov-mesto.cz.
Host names with two IP numbers: mailp.webhouse.cz points to 2a00:d940:0:3::217 and 78.156.158.217.
Host names with one IP number: mail.kstudanka.cz points to 78.156.158.210.