topek.cz - dns.ninja
topek.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 31.177.31.6🇨🇿 SUPRO-AS31.177.24.0/21 SUPRO spol. s r.o. | ||||||
| PTR | hosting.supronet.cz | ||||||
| NS | ns.avonet.cz ⭐ | ||||||
| A | 2a00:6500:0:11::a🇨🇿 MGI2a00:6500::/29 AVONET, s.r.o. | ||||||
| PTR | ns-bb0-acc-1.avonet.cz | ||||||
| A | 217.112.162.34🇨🇿 MGI217.112.160.0/20 CZ.MGI | ||||||
| PTR | ns.avonet.cz | ||||||
| NS | sns.avonet.cz | ||||||
| A | 2a02:17a0:fff1:2003::a🇨🇿 GRAPESC-ISP2a02:17a0::/30 | ||||||
| A | 93.91.154.61🇨🇿 ISPAlliance93.91.144.0/20 | ||||||
| PTR | u154-61.static.grape.cz | ||||||
| NS | tns.avonet.cz | ||||||
| A | 2a00:6500:0:f2::c🇨🇿 MGI2a00:6500::/29 AVONET, s.r.o. | ||||||
| PTR | tns.avonet.cz | ||||||
| A | 217.112.160.5🇨🇿 MGI217.112.160.0/20 CZ.MGI | ||||||
| PTR | tns.avonet.cz | ||||||
| MX | zimbra.supronet.cz ⭐ | ||||||
| A | 94.125.223.4🇨🇿 SUPRO-AS94.125.216.0/21 SUPRO spol. s r.o. | ||||||
| PTR | zimbra.supronet.cz | ||||||
| TXT | v=spf1 mx a ip4:94.125.223.4 ~all | ||||||
| SOA | ns.avonet.czhostmaster@avonet.cz 2026-01-15 #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=1780762635 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSns.avonet.cz2026-02-22 → 2026-06-06 · 3 obs
● 2026-02-22 18:13:40
● 2026-06-06 16:28:06
○NSns.supro.cz2015-05-19 → 2017-08-16 · 4 obs
● 2017-08-16 07:22:58
○ 2026-02-22 18:13:40
○ 2026-06-06 16:28:06
●NSsns.avonet.cz2026-02-22 → 2026-06-06 · 3 obs
● 2026-02-22 18:13:40
● 2026-06-06 16:28:06
○NSsns.supro.cz2015-05-19 → 2017-08-16 · 4 obs
● 2017-08-16 07:22:58
○ 2026-02-22 18:13:40
○ 2026-06-06 16:28:06
●NStns.avonet.cz2026-02-22 → 2026-06-06 · 3 obs
● 2026-02-22 18:13:40
● 2026-06-06 16:28:06
○MXdns.supro.cz2015-05-19 → 2017-08-16 · 4 obs
● 2017-08-16 07:22:58
○ 2026-02-22 18:13:40
○ 2026-06-06 16:28:06
○MXis.topek.cz2015-05-19 → 2017-08-16 · 4 obs
● 2017-08-16 07:22:58
○ 2026-02-22 18:13:40
○ 2026-06-06 16:28:06
●MXzimbra.supronet.cz2026-02-22 → 2026-06-06 · 3 obs
● 2026-02-22 18:13:40
● 2026-06-06 16:28:06
●A31.177.31.62026-02-22 → 2026-06-06 · 2 obs
● 2026-06-06 16:28:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| topek.cz | ns.avonet.cz, sns.avonet.cz, tns.avonet.cz | 6 records |
✅ Authoritative Response
Server:217.112.160.5
NS records: ns.avonet.cz, sns.avonet.cz, tns.avonet.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for topek.cz (unsigned zone)
⏱️ Timing
Total: 1104ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.177.31.6 |
| NS | 3 | ns.avonet.cz, tns.avonet.cz... |
| MX | 1 | zimbra.supronet.cz (pri: 5) |
| TXT | 1 | v=spf1 mx a ip4:94.125.223.4 ~all |
| SOA | 1 | ns.avonet.cz hostmaster.avonet.cz |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns.avonet.cz, ns.avonet.cz, sns.avonet.cz...)
Analysis
Hierarchy
email.topek.cz and is.topek.cz each fall under topek.cz as their parent domain.
IP Addresses
topek.cz resolves to just one IP address, 31.177.31.6.
hosting.supronet.cz is an example of another host name that shares IP numbers with topek.cz.
Name Servers
topek.cz has three name servers — ns.avonet.cz, sns.avonet.cz and tns.avonet.cz.
There is at least partial name server overlap between topek.cz and other domains — luhacovice.cz, wista.cz, 252.115.217.in-addr.arpa and two more among them.
Each of ns.avonet.cz, sns.avonet.cz and tns.avonet.cz points to two IP numbers. ns.avonet.cz points to 217.112.162.34 and 2a00:6500:0:11::a. sns.avonet.cz points to 93.91.154.61 and 2a02:17a0:fff1:2003::a. tns.avonet.cz points to 217.112.160.5 and 2a00:6500:0:f2::c.
Mail Servers
The sole mail server for topek.cz is zimbra.supronet.cz.
Mail server setup for topek.cz matches that of other domains, among them lima.cz.
zimbra.supronet.cz points to one IP number — 94.125.223.4.