webkoder.cz - dns.ninja
webkoder.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 217.11.249.139🇨🇿 CASABLANCA-AS217.11.248.0/23 Casablanca INT | ||||||
| PTR | krios.blueboard.cz | ||||||
| NS | shinzon.blueboard.cz ⭐ | ||||||
| A | 2a00:1ed0:45::b🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| PTR | shinzon.blueboard.cz | ||||||
| A | 178.251.187.7🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| PTR | shinzon.blueboard.cz | ||||||
| NS | jaguar.blueboard.cz ⚠️ Not in zone NS records | ||||||
| A | 2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| A | 178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| NS | ns2.blueboard.cz | ||||||
| A | 2a01:4f8:13b:8d4::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 195.201.57.122🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC | ||||||
| PTR | ns2.blueboard.cz | ||||||
| MX | jaguar.blueboard.cz ⭐ | ||||||
| A | 2a00:1ed0:45::c🇨🇿 VSHOSTING2a00:1ed0::/32 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| A | 178.251.187.8🇨🇿 VSHOSTING178.251.184.0/21 | ||||||
| PTR | jaguar.blueboard.cz | ||||||
| TXT | v=spf1 a mx include:spf.blueboard.cz -all | ||||||
| SOA | shinzon.blueboard.czhostmaster@shinzon.blueboard.cz 2008-06-19 #3 | ||||||
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=1783441039 | ||||||
Same first word
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DNS History
6 records (5 active, 1 former)
●NSjaguar.blueboard.cz2026-06-22 → 2026-07-07 · 3 obs
● 2026-06-22 03:14:52
● 2026-07-07 16:42:34
●NSns2.blueboard.cz2015-07-08 → 2026-07-07 · 2 obs
● 2026-07-07 16:42:34
●NSshinzon.blueboard.cz2015-07-08 → 2026-07-07 · 2 obs
● 2026-07-07 16:42:34
●MXjaguar.blueboard.cz2015-07-08 → 2026-07-07 · 2 obs
● 2026-07-07 16:42:34
○MXns2.blueboard.cz2015-07-08 → 2018-07-21 · 4 obs
● 2018-07-21 10:55:08
○ 2026-06-22 03:14:52
○ 2026-07-07 16:42:34
●A217.11.249.1392015-07-08 → 2026-07-07 · 2 obs
● 2026-07-07 16:42:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| webkoder.cz | shinzon.blueboard.cz, ns2.blueboard.cz, jaguar.blueboard.cz | 3 records |
✅ Authoritative Response
Server:178.251.187.8
NS records: shinzon.blueboard.cz, ns2.blueboard.cz, jaguar.blueboard.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for webkoder.cz (unsigned zone)
⏱️ Timing
Total: 1164ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.11.249.139 |
| NS | 2 | shinzon.blueboard.cz, ns2.blueboard.cz |
| MX | 1 | jaguar.blueboard.cz (pri: 10) |
| TXT | 1 | v=spf1 a mx include:spf.blueboard.cz -al |
| SOA | 1 | shinzon.blueboard.cz hostmaster.shinzon. |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (shinzon.blueboard.cz, jaguar.blueboard.cz, ns2.blueboard.cz)
Analysis
IP Addresses
webkoder.cz has exactly one IP address — 217.11.249.139.
lojzo.cz, sobe.cz, angio.cz plus two other host names have IP numbers in common with webkoder.cz.
Name Servers
Three name servers are authoritative for webkoder.cz: jaguar.blueboard.cz, ns2.blueboard.cz and shinzon.blueboard.cz.
webkoder.cz partially shares its NS delegation with several other domains, including teroos.cz, alkut.cz, idomy.cz and two others.
These name servers often co-occur with the name servers ns2.miniserver.cz.
jaguar.blueboard.cz resolves to 178.251.187.8 and 2a00:1ed0:45::c. ns2.blueboard.cz resolves to 195.201.57.122 and 2a01:4f8:13b:8d4::2. shinzon.blueboard.cz resolves to 178.251.187.7 and 2a00:1ed0:45::b. All three hostnames point to two IP numbers each.
Mail Servers
webkoder.cz uses one mail server — jaguar.blueboard.cz.
The mail server setup of webkoder.cz matches that of other domains such as vycepni-zarizeni.com, ketrys.cz, nikdo.eu and two others.
At least some of the mail servers used by webkoder.cz are shared with other domains: jicin.org, tomask.info, simanek.eu and two others among them.