6thriver.cz - robtex.com
6thriver.cz
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=1774387037 | ||||||
Same first word
6thriver.cz |
DNS History
11 records (5 active, 6 former)
●NSbella.ns.cloudflare.com2026-03-18 → 2026-03-24 · 3 obs
● 2026-03-18 10:14:38
● 2026-03-24 21:32:24
○NSns.bcom.cz2015-07-23 → 2018-01-21 · 4 obs
● 2018-01-21 13:18:50
○ 2026-03-18 10:14:38
○ 2026-03-24 21:32:24
○NSns.webx.cz2015-07-23 → 2018-01-21 · 4 obs
● 2018-01-21 13:18:50
○ 2026-03-18 10:14:38
○ 2026-03-24 21:32:24
●NSpaul.ns.cloudflare.com2026-03-18 → 2026-03-24 · 3 obs
● 2026-03-18 10:14:38
● 2026-03-24 21:32:24
○MXmail.webx.cz2015-07-23 → 2018-01-21 · 4 obs
● 2018-01-21 13:18:50
○ 2026-03-18 10:14:38
○ 2026-03-24 21:32:24
○MXmail2.webx.cz2015-07-23 → 2018-01-21 · 4 obs
● 2018-01-21 13:18:50
○ 2026-03-18 10:14:38
○ 2026-03-24 21:32:24
●MXmailui.sitmp.cz2026-03-18 → 2026-03-24 · 3 obs
● 2026-03-18 10:14:38
● 2026-03-24 21:32:24
●A185.153.192.1372026-03-18 → 2026-03-24 · 3 obs
● 2026-03-18 10:14:38
● 2026-03-24 21:32:24
○A2001:1528:246:0:ff52:d00c:cff:02015-07-23 → 2018-01-21 · 4 obs
● 2018-01-21 13:18:50
○ 2026-03-18 10:14:38
○ 2026-03-24 21:32:24
●A2a07:8d80:f100:f5f5::1372026-03-18 → 2026-03-24 · 3 obs
● 2026-03-18 10:14:38
● 2026-03-24 21:32:24
○A82.208.12.122015-07-23 → 2018-01-21 · 4 obs
● 2018-01-21 13:18:50
○ 2026-03-18 10:14:38
○ 2026-03-24 21:32:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| 6thriver.cz | paul.ns.cloudflare.com, bella.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.74
NS records: paul.ns.cloudflare.com, bella.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1046ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.153.192.137 |
| AAAA | 1 | 2a07:8d80:f100:f5f5::137 |
| NS | 2 | bella.ns.cloudflare.com, paul.ns.cloudflare.com |
| MX | 1 | mailui.sitmp.cz (pri: 10) |
| TXT | 1 | v=spf1 mx -all |
| SOA | 1 | bella.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
Two IP numbers are pointed to by 6thriver.cz: 2a07:8d80:f100:f5f5::137 and 185.153.192.137.
other host names include utulekplzen.cz, zsujezdplzen.cz, skodaland.cz, zooplzen.cz and bezpecnemesto.eu; they share IP numbers with 6thriver.cz.
Name Servers
Two name servers bella.ns.cloudflare.com and paul.ns.cloudflare.com handle the delegation for 6thriver.cz.
6thriver.cz shares the same name server setup as other domains, for instance mio.ag, silverlegendsjewelry.com, sip-system.com, plznito.cz and plzenprodeti.cz.
6thriver.cz at least partially shares name servers with other domains, for instance gusclicks.com, zumba.vacations, eliteasiapac.com, sonaesierra.eu and megacapotas.com.br.
These name servers are commonly used with iris.ns.cloudflare.com and jimmy.ns.cloudflare.com.
Six IP addresses per host:
bella.ns.cloudflare.com points to 2606:4700:50::adf5:3a4a, 2803:f800:50::6ca2:c04a, 2a06:98c1:50::ac40:204a, 108.162.192.74, 172.64.32.74 and 173.245.58.74; paul.ns.cloudflare.com points to 2606:4700:58::adf5:3b87, 2803:f800:50::6ca2:c187, 2a06:98c1:50::ac40:2187, 108.162.193.135, 172.64.33.135 and 173.245.59.135
Mail Servers
6thriver.cz is handled by a single mail server, mailui.sitmp.cz.
6thriver.cz uses the same mail server setup as other domains, for instance zsujezdplzen.cz, skodaland.cz, zooplzen.cz, plznito.cz and plzenprodeti.cz.
The host name mailui.sitmp.cz points to IP 185.153.193.23.