rubytech.cz - robtex.com
rubytech.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 80.250.5.74🇨🇿 WIA-AS80.250.0.0/19 WIA s.r.o., Prague, Czech Republic | ||||||
| PTR | server.nethouse.cz | ||||||
| NS | ns1.wia.cz ⭐ | ||||||
| A | 2a01:6400:2:1002::2🇨🇿 WIA-AS2a01:6400::/32 WIA spol. s r.o. Prague, Czech Republic | ||||||
| PTR | ns1.wia.cz | ||||||
| A | 80.250.5.90🇨🇿 WIA-AS80.250.0.0/19 WIA s.r.o., Prague, Czech Republic | ||||||
| PTR | ns1.wia.cz | ||||||
| NS | ns2.wia.cz | ||||||
| A | 2a01:6400:2:1003::2🇨🇿 WIA-AS2a01:6400::/32 WIA spol. s r.o. Prague, Czech Republic | ||||||
| PTR | ns2.wia.cz | ||||||
| A | 31.7.247.62🇨🇿 WIA-AS31.7.240.0/21 WIA spol. s.r.o. | ||||||
| PTR | ns2.wia.cz | ||||||
| MX | server.nethouse.cz ⭐ | ||||||
| A | 2a01:6400:2:30::1🇨🇿 WIA-AS2a01:6400::/32 WIA spol. s r.o. Prague, Czech Republic | ||||||
| PTR | server.nethouse.cz | ||||||
| A | 80.250.5.74🇨🇿 WIA-AS80.250.0.0/19 WIA s.r.o., Prague, Czech Republic | ||||||
| PTR | server.nethouse.cz | ||||||
| SOA | ns1.wia.czhostmaster@wia.cz 2011-02-18 #1 | ||||||
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=1788140843 | ||||||
Same first word
Similar names
Previous names
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DNS History
4 records (4 active, 0 former)
●MXserver.nethouse.cz2015-07-05 → 2026-08-31 · 2 obs
● 2026-08-31 02:21:58
●A80.250.5.742015-07-05 → 2026-08-31 · 2 obs
● 2026-08-31 02:21:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| rubytech.cz | ns1.wia.cz, ns2.wia.cz | 4 records |
✅ Authoritative Response
Server:31.7.247.62
NS records: ns1.wia.cz, ns2.wia.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rubytech.cz (unsigned zone)
⏱️ Timing
Total: 790ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 80.250.5.74 |
| NS | 2 | ns1.wia.cz, ns2.wia.cz |
| MX | 1 | server.nethouse.cz (pri: 99) |
| SOA | 1 | ns1.wia.cz hostmaster.wia.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.wia.cz, ns1.wia.cz, ns2.wia.cz...)
Analysis
IP Addresses
rubytech.cz resolves to one IP address: 80.250.5.74.
fiber-shop.cz, odblokovani.cz, masnato.com and two other host names share IP numbers with rubytech.cz.
Name Servers
DNS delegation for rubytech.cz points to two name servers: ns1.wia.cz and ns2.wia.cz.
rubytech.cz uses the same name servers as several other domains — among them 52.208.82.in-addr.arpa, unyp.eu, mastervac.cz and two more.
The name servers for rubytech.cz are partially shared with other domains like deltateam.cz, ralko.cz and plavani.com
ns1.wia.cz directs to 80.250.5.90 and 2a01:6400:2:1002::2. ns2.wia.cz directs to 31.7.247.62 and 2a01:6400:2:1003::2. Each host name carries two IP addresses.
Mail Servers
Mail for rubytech.cz is handled by a single mail server, server.nethouse.cz.
rubytech.cz uses an identical mail server configuration to several other domains — among them straightcore.cz, softpillow.tv, poupa.cz and two more.
rubytech.cz has at least partial mail server overlap with other domains such as strizek.cz, lunaria.cz, mywia.cz and two more.
It is common to see these mail servers combined with the mail servers mail2.wia.cz, mail2.kutnahora.cz and etrn.nextra.cz.
server.nethouse.cz directs to two IP numbers, 80.250.5.74 and 2a01:6400:2:30::1.