seizis.com - robtex.com
seizis.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.86.11🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php5.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 2010-04-21 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1776272062 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
○MXmail.seizis.com2015-06-06 → 2019-03-10 · 3 obs
● 2019-03-10 09:39:00
○ 2026-04-15 17:22:16
●A81.91.86.112015-06-06 → 2026-04-15 · 2 obs
● 2026-04-15 17:22:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, g.gtld-servers.net... | - |
| seizis.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for seizis.com (unsigned zone)
⏱️ Timing
Total: 899ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.11 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mx.web4u.cz (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
IP Addresses
seizis.com points to a single IP address: 81.91.86.11.
Other host names such as unassigned-81-91-83-120.web4u.cz, unassigned-81-91-86-200.web4u.cz, truhlarstvi-dolezal.cz, infogold.cz and ranchm.cz share IP numbers with seizis.com.
Name Servers
seizis.com is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.
seizis.com uses the same name server setup as other domains, including lentex.cz, sadaramen.cz, dsepurkynove.cz, derbianus.org and pinda.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
The mail server for seizis.com is mx.web4u.cz.
seizis.com uses the same mail server setup as other domains, for instance diskuzniforum.cz, tipsport.lt, gosumava.cz, sontodinomo.cz and ahoraaqui.cz.
seizis.com shares some mail servers with other domains at least partially, for example isosklo.cz, dkskolin.cz and ixio.cz.
Hostname mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.