jgroup.cz - robtex.com
jgroup.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:1528:279:0:217:11:227:76🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | backup.antee.cz | ||||||
| A | 217.11.227.76🇨🇿 CASABLANCA-AS217.11.227.0/24 Casablanca INT | ||||||
| NS | ns1.antee.cz ⭐ | ||||||
| A | 2001:1528:279:0:217:11:227:76🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | backup.antee.cz | ||||||
| A | 217.11.227.76🇨🇿 CASABLANCA-AS217.11.227.0/24 Casablanca INT | ||||||
| NS | ns2.antee.cz | ||||||
| A | 2001:1528:279:0:77:78:100:193🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | mail.antee.cz | ||||||
| A | 77.78.100.193🇨🇿 CASABLANCA-AS77.78.96.0/20 Casablanca INT | ||||||
| MX | mail.antee.cz ⭐ | ||||||
| A | 2001:1528:279:0:77:78:100:193🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | mail.antee.cz | ||||||
| A | 77.78.100.193🇨🇿 CASABLANCA-AS77.78.96.0/20 Casablanca INT | ||||||
| MX | backup.antee.cz(20) | ||||||
| A | 2001:1528:279:0:217:11:227:76🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network | ||||||
| PTR | backup.antee.cz | ||||||
| A | 217.11.227.76🇨🇿 CASABLANCA-AS217.11.227.0/24 Casablanca INT | ||||||
| TXT | v=spf1 include:spf.antee.cz ~all | ||||||
| SOA | ns1.antee.czhostmaster@antee.cz 2025-04-06 #21 | ||||||
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=1784751444 | ||||||
Same first word
Similar names
gorjup.eu |
gorjup.de |
grupoj.org |
groupj.net |
gjorup.com |
gjorup.dk |
gjorup.net |
gorjup.net |
gojupr.org |
gorjup.com |
gujpro.co.in |
groupj.com |
gojupr.com |
grupoj.com |
gorjup.si |
jugpro.com |
DNS History
6 records (6 active, 0 former)
●A2001:1528:279:0:217:11:227:762016-05-03 → 2026-07-22 · 3 obs
● 2016-05-03 04:09:22
● 2026-07-22 20:43:32
●A217.11.227.762015-07-23 → 2026-07-22 · 2 obs
● 2026-07-22 20:43:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| jgroup.cz | ns1.antee.cz, ns2.antee.cz | 4 records |
✅ Authoritative Response
Server:77.78.100.193
NS records: ns1.antee.cz, ns2.antee.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jgroup.cz (unsigned zone)
⏱️ Timing
Total: 895ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.11.227.76 |
| AAAA | 1 | 2001:1528:279:0:217:11:227:76 |
| NS | 2 | ns1.antee.cz, ns2.antee.cz |
| MX | 2 | mail.antee.cz (pri: 10), backup.antee.cz (pri: 20) |
| TXT | 1 | v=spf1 include:spf.antee.cz ~all |
| SOA | 1 | ns1.antee.cz hostmaster.antee.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.antee.cz, ns2.antee.cz, ns1.antee.cz...)
Analysis
IP Addresses
jgroup.cz resolves to the IP addresses 217.11.227.76 and 2001:1528:279:0:217:11:227:76
dagsro.com, rhombus.cz, ksusk.cz plus two other host names have IP numbers in common with jgroup.cz.
Name Servers
DNS delegation for jgroup.cz points to two name servers: ns1.antee.cz and ns2.antee.cz.
The name server configuration of jgroup.cz is shared with other domains, for instance prosivani.cz, semnice.cz, trebejice.cz and two others.
jgroup.cz shares at least some of its name servers with other domains, including masroznovsko.cz, lutonina.cz, bepof.com and two others.
ns1.antee.cz directs to 217.11.227.76 and 2001:1528:279:0:217:11:227:76. ns2.antee.cz directs to 77.78.100.193 and 2001:1528:279:0:77:78:100:193. Each host name carries two IP addresses.
Mail Servers
jgroup.cz uses two mail servers, backup.antee.cz and mail.antee.cz.
The mail server setup of jgroup.cz matches that of other domains such as horniolesnice.cz, petiboj-psc.cz, cernikov.cz and two others.
jgroup.cz shares at least some of its mail servers with other domains, such as kaip.cz and holspol.cz.
These mail servers tend to be used in conjunction with the mail servers posta.kaip.cz.
backup.antee.cz directs to 217.11.227.76 and 2001:1528:279:0:217:11:227:76. mail.antee.cz directs to 77.78.100.193 and 2001:1528:279:0:77:78:100:193. Each host name carries two IP addresses.