komunitnicentrum.com - robtex.com
komunitnicentrum.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.102.21.20🇨🇿 ONE-NETWORK185.102.21.0/24 | ||||||
| PTR | dw328.webglobe.com | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mail.komunitnicentrum.com ⭐ | ||||||
| A | 109.81.243.245🇨🇿 O2-CZECH-REPUBLIC109.80.0.0/15 CZ.CZNET Abuse Contact:abuse@o2.cz | ||||||
| PTR | mail.komunitnicentrum.com | ||||||
| TXT | v=spf1 ip4:109.81.243.245 ~all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2026-02-02 #3 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776113752 | ||||||
Subdomains
mail.komunitnicentrum.com |
Same first word
komunitnicentrum.com |
DNS History
7 records (4 active, 3 former)
●MXmail.komunitnicentrum.com2015-08-09 → 2026-04-13 · 2 obs
● 2026-04-13 21:07:30
●A185.102.21.202026-03-11 → 2026-04-13 · 3 obs
● 2026-03-11 22:47:32
● 2026-04-13 21:07:30
○A217.31.57.772017-04-03 → 2017-04-03 · 4 obs
● 2017-04-03 14:27:12
○ 2026-03-11 22:47:32
○ 2026-04-13 21:07:30
○A217.31.57.882015-08-09 → 2016-07-11 · 4 obs
● 2016-07-11 23:20:22
○ 2017-04-03 14:27:12
○ 2026-04-13 21:07:30
○A86.63.219.1802026-03-11 → 2026-04-13 · 2 obs
○ 2026-04-13 21:07:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, g.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net... | - |
| komunitnicentrum.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for komunitnicentrum.com (unsigned zone)
⏱️ Timing
Total: 603ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.102.21.20 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mail.komunitnicentrum.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:109.81.243.245 ~all |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
Hierarchy
komunitnicentrum.com is the parent of mail.komunitnicentrum.com.
IP Addresses
komunitnicentrum.com resolves to a single IP: 185.102.21.20.
Other host names, for instance websolution.cz, stm-in.com, www.sportiszdar.cz, sevela.org and www.prosluknovsko.cz share IP numbers with komunitnicentrum.com.
Name Servers
komunitnicentrum.com has two name servers: ns2.web4u.cz and ns.web4u.cz.
komunitnicentrum.com shares the same name server setup as other domains, for example fmxgladiatorgames.com, kyjovskyinternet.com, bazenova-chemie.cz, sonoscan.cz and krejcovi.cz.
komunitnicentrum.com partially shares name servers with other domains, for instance elcad.cz.
Host names with two IP numbers:
ns2.web4u.cz points to: 2a02:a40:100:28ff::12 and 85.207.53.12; ns.web4u.cz points to: 2001:1568:fd::241 and 185.14.224.241.
Mail Servers
komunitnicentrum.com is handled by a single mail server, mail.komunitnicentrum.com.
Host name mail.komunitnicentrum.com points to IP 109.81.243.245.