jmskoly.cz - robtex.com
jmskoly.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 147.229.242.66🇨🇿 VUTBR-AS147.229.224.0/19 VUTBR-NET4 | ||||||
| PTR | smtp-relay.vim-jmk.cz | ||||||
| NS | main.sssbrno.cz ⭐ | ||||||
| A | 147.229.242.66🇨🇿 VUTBR-AS147.229.224.0/19 VUTBR-NET4 | ||||||
| PTR | smtp-relay.vim-jmk.cz | ||||||
| NS | pipit.cis.vutbr.cz | ||||||
| A | 2a01:430:120::4d5d:db6e🇨🇿 MASTER-AS2a01:430::/32 MASTER-IPV6-1-MAI-CZ | ||||||
| PTR | pipit.cis.vutbr.cz | ||||||
| A | 77.93.219.110🇨🇿 MASTER-AS77.93.192.0/19 MASTER-NET-4 | ||||||
| PTR | pipit.cis.vutbr.cz | ||||||
| MX | main.sssbrno.cz ⭐ | ||||||
| A | 147.229.242.66🇨🇿 VUTBR-AS147.229.224.0/19 VUTBR-NET4 | ||||||
| PTR | smtp-relay.vim-jmk.cz | ||||||
| TXT | v=spf1 mx ip4:147.229.242.64/27 -all | ||||||
| SOA | main.sssbrno.czhostmaster@sssbrno.cz 2025-07-21 #0 | ||||||
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=1778521660 | ||||||
Subdomains
www.jmskoly.cz |
Same first word
jmskoly.cz |
DNS History
5 records (4 active, 1 former)
●NSmain.sssbrno.cz2015-08-04 → 2026-05-11 · 2 obs
● 2026-05-11 18:14:06
●NSpipit.cis.vutbr.cz2015-08-04 → 2026-05-11 · 2 obs
● 2026-05-11 18:14:06
●MXmain.sssbrno.cz2015-08-04 → 2026-05-11 · 2 obs
● 2026-05-11 18:14:06
●A147.229.242.662026-03-17 → 2026-05-11 · 3 obs
● 2026-03-17 14:37:50
● 2026-05-11 18:14:06
○A147.229.242.842015-08-04 → 2016-12-22 · 4 obs
● 2016-12-22 20:24:32
○ 2026-03-17 14:37:50
○ 2026-05-11 18:14:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| jmskoly.cz | main.sssbrno.cz, pipit.cis.vutbr.cz | 3 records |
✅ Authoritative Response
Server:147.229.242.66
NS records: main.sssbrno.cz, pipit.cis.vutbr.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jmskoly.cz (unsigned zone)
⏱️ Timing
Total: 1692ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 147.229.242.66 |
| NS | 2 | main.sssbrno.cz, pipit.cis.vutbr.cz |
| MX | 1 | main.sssbrno.cz (pri: 10) |
| TXT | 1 | v=spf1 mx ip4:147.229.242.64/27 -all |
| SOA | 1 | main.sssbrno.cz hostmaster.sssbrno.cz |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (main.sssbrno.cz, pipit.cis.vutbr.cz, pipit.cis.vutbr.cz)
Analysis
Hierarchy
jmskoly.cz is the parent of www.jmskoly.cz.
IP Addresses
jmskoly.cz resolves to a single IP: 147.229.242.66.
Other host names, for instance www.vim-jmk.cz, www.jmskoly.cz, main.sssbrno.cz, sssbrno.cz and vim-jmk.cz share IP numbers with jmskoly.cz.
Name Servers
jmskoly.cz has two name servers: main.sssbrno.cz and pipit.cis.vutbr.cz.
jmskoly.cz uses the same name server setup as other domains, for example sssbrno.cz and vim-jmk.cz.
jmskoly.cz shares some name servers with other domains, for example zvut.cz, bmt.cz, 229.147.in-addr.arpa, telco.vutbr.cz and vutbr.cz.
These name servers are commonly used with the name servers rhino.cis.vutbr.cz, swordfish.ro.vutbr.cz, rhino.vutbr.net, ns.kmenet.cz, jaguar.net.vutbr.cz and nsa.ces.net.
Host names with two IP numbers: pipit.cis.vutbr.cz points to: 2a01:430:120::4d5d:db6e and 77.93.219.110.
Host names with one IP number: main.sssbrno.cz points to: 147.229.242.66.
Mail Servers
jmskoly.cz is handled by a single mail server, main.sssbrno.cz.