jtr.cz - robtex.com
jtr.cz
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.profitux.cz ⚠️ Not in zone NS records | ||||||
| A | 2a00:1e40:a:53::5🇸🇰 IGNUM-AS2a00:1e40:a::/48 | ||||||
| PTR | ns1-bra.core.webglobe.com | ||||||
| A | 185.65.223.35🇸🇰 IGNUM-AS185.65.223.0/24 | ||||||
| PTR | ns1-bra.core.webglobe.com | ||||||
| NS | ns2.profitux.cz ⚠️ Not in zone NS records | ||||||
| A | 2001:1ab0:7e1e:2::5🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/ | ||||||
| PTR | ns2-prg.core.webglobe.com | ||||||
| A | 217.31.48.201🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/ | ||||||
| PTR | ns2-prg.core.webglobe.com | ||||||
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=1775613409 | ||||||
Same first word
Similar names
DNS History
6 records (2 active, 4 former)
●NSns1.profitux.cz2015-08-13 → 2026-04-08 · 3 obs
● 2015-08-13 06:44:26
● 2026-04-08 02:18:36
●NSns2.profitux.cz2015-08-13 → 2026-04-08 · 3 obs
● 2015-08-13 06:44:26
● 2026-04-08 02:18:36
○MXbackupmx.profitux.cz2015-09-29 → 2016-09-09 · 4 obs
● 2016-09-09 22:33:28
○ 2026-03-26 09:17:18
○ 2026-04-08 02:18:36
○MXpmail.profitux.cz2015-09-29 → 2016-09-09 · 4 obs
● 2016-09-09 22:33:28
○ 2026-03-26 09:17:18
○ 2026-04-08 02:18:36
○A2001:1528:157:0:52:d0:2f:812015-08-13 → 2016-09-09 · 5 obs
● 2015-08-13 06:44:26
● 2016-09-09 22:33:28
○ 2026-03-26 09:17:18
○ 2026-04-08 02:18:36
○A82.208.47.1292015-08-13 → 2016-09-09 · 5 obs
● 2015-08-13 06:44:26
● 2016-09-09 22:33:28
○ 2026-03-26 09:17:18
○ 2026-04-08 02:18:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| jtr.cz | ns1.profitux.cz, ns2.profitux.cz | 3 records |
✅ Authoritative Response
Server:217.31.48.201
NS records: ns1.profitux.cz, ns2.profitux.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jtr.cz (unsigned zone)
⏱️ Timing
Total: 644ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.profitux.cz, ns2.profitux.cz, ns1.profitux.cz)
Analysis
Name Servers
Two name servers ns1.profitux.cz and ns2.profitux.cz handle the delegation for jtr.cz.
jtr.cz shares the same name server setup as other domains, for instance kolinet.com, iprofil.cz, roucka.eu, e39.cz and sklopne-postele.eu.
jtr.cz at least partially shares name servers with other domains, for instance ekostopa.cz, lasergamebrno.cz, xaint.net, playady.cz and gigo.cz.
These name servers are commonly used with the name servers ns2.ignum.cz, ns1.ignum.eu, ns2.ignum.eu, ns3.ignum.eu, ns1.ignum.com, ns3.webglobe.com, ns1.webglobe.cz and ns2.webglobe.cz.
Host names with two IP numbers:
ns1.profitux.cz points to 2a00:1e40:a:53::5 and 185.65.223.35.
ns2.profitux.cz points to 2001:1ab0:7e1e:2::5 and 217.31.48.201.