perfectmodel.cz - robtex.com
perfectmodel.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.91.86.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php53.web4u.cz | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mx.web4u.cz ⭐ | ||||||
| A | 2001:1568::7012🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | mx.web4u.cz | ||||||
| A | 81.91.87.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | mx.web4u.cz | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2012-04-04 #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=1774680436 | ||||||
Subdomains
mail.perfectmodel.cz |
Same first word
DNS History
5 records (4 active, 1 former)
○MXmail.perfectmodel.cz2015-07-08 → 2017-08-09 · 4 obs
● 2017-08-09 08:53:44
○ 2026-03-28 07:06:26
○ 2026-03-28 07:06:28
●MXmx.web4u.cz2026-03-28 → 2026-03-28 · 3 obs
● 2026-03-28 07:06:26
● 2026-03-28 07:06:28
●A81.91.86.122015-07-08 → 2026-03-28 · 2 obs
● 2026-03-28 07:06:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| perfectmodel.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1062ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.12 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mx.web4u.cz (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
Hierarchy
perfectmodel.cz is parent of mail.perfectmodel.cz.
IP Addresses
perfectmodel.cz points to a single IP: 81.91.86.12.
Other host names, for instance inpasolutions.com, nesy.cz, mazac.eu, fotodesign.cz and strechybenesov.cz share IP numbers with perfectmodel.cz.
Name Servers
perfectmodel.cz's delegation is to two name servers ns2.web4u.cz and ns.web4u.cz.
perfectmodel.cz shares the same name server configuration as other domains, such as in-energie.com, goo-gone.eu, jkenvi.cz, ctel.cz and autio.cz.
Host names with two IP numbers: ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12; ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241
Mail Servers
perfectmodel.cz is served by a single mail server, mx.web4u.cz.
perfectmodel.cz uses the same mail server setup as other domains such as pajin.cz, startours.cz, zeca.cz, mipl.cz and pizzarossi.cz.
perfectmodel.cz shares some mail servers with other domains at least partially, for example pujcovna-lodi.cz.
Hostname mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.