f-system.cz - robtex.com
f-system.cz
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=1775504835 | ||||||
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns1.svethostingu.cz2015-08-04 → 2026-04-06 · 2 obs
● 2026-04-06 20:24:54
●NSns2.svethostingu.cz2015-08-04 → 2026-04-06 · 2 obs
● 2026-04-06 20:24:54
●NSns3.svethostingu.eu2026-03-06 → 2026-04-06 · 3 obs
● 2026-03-06 01:31:52
● 2026-04-06 20:24:54
●MXmail.svethostingu.cz2015-08-04 → 2026-04-06 · 2 obs
● 2026-04-06 20:24:54
●A212.158.159.1162026-03-06 → 2026-04-06 · 3 obs
● 2026-03-06 01:31:52
● 2026-04-06 20:24:54
○A77.93.218.102015-08-04 → 2017-03-28 · 4 obs
● 2017-03-28 17:33:52
○ 2026-03-06 01:31:52
○ 2026-04-06 20:24:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | 8 records |
| f-system.cz | ns2.svethostingu.cz, ns3.svethostingu.eu, ns1.svethostingu.cz | 4 records |
✅ Authoritative Response
Server:212.158.159.98
NS records: ns2.svethostingu.cz, ns3.svethostingu.eu, ns1.svethostingu.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for f-system.cz (unsigned zone)
⏱️ Timing
Total: 2579ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.158.159.116 |
| NS | 3 | ns3.svethostingu.eu, ns1.svethostingu.cz... |
| MX | 1 | mail.svethostingu.cz (pri: 10) |
| TXT | 1 | v=spf1 mx a:parez.6.praha12.net a:pha01. |
| SOA | 1 | ns1.svethostingu.cz dnsmaster.svethostin |
📌 Glue Records Collected
Total: 12
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz...)
Out-of-bailiwick: 4 (ns2.svethostingu.cz, ns1.svethostingu.cz, ns2.svethostingu.cz...)
Analysis
IP Addresses
f-system.cz resolves to a single IP: 212.158.159.116.
Other host names, for instance foxi.cz, mshradiskova.cz, sklopodkamna.cz, nomad.cz and vodomat.cz share IP numbers with f-system.cz.
Name Servers
f-system.cz delegates to three name servers: ns1.svethostingu.cz, ns2.svethostingu.cz and ns3.svethostingu.eu.
f-system.cz shares some name servers with other domains, for example zabza.eu, praktickapedagogika.cz, cartridge.sk, denter.cz and foto-tapeta.cz.
These name servers are commonly used together with ns1.svetvps.cz and ns2.svetvps.cz.
Host names with two IP numbers:
ns1.svethostingu.cz: 2a01:430:53::8300:171 and 83.167.244.171
ns2.svethostingu.cz: 2a02:a40:20c::98 and 212.158.159.98
ns3.svethostingu.eu: 2a03:b0c0:3:e0::14d:d001 and 165.22.74.103
Mail Servers
f-system.cz is handled by a single mail server, mail.svethostingu.cz.
f-system.cz shares the mail server setup with other domains, for example eurodenik.cz, vecernik.sk, stavba.net, r10.cz and lucca.cz.
f-system.cz shares at least some mail servers with other domains, for example apronex.cz.
mail.svethostingu.cz resolves to two IPs: 77.93.218.4 and 212.158.159.120.