parsek.cz - dns.ninja
parsek.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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 2010-01-29 #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=1786128443 | ||||||
Same first word
parsek.tv |
parsek.info |
parsek.su |
parsek.sk |
parsek.net |
parsek.ir |
parsek.cz |
parsek.it |
parsek.co.uk |
parsek.ru |
parsek.si |
parsek.com |
Similar names
DNS History
5 records (4 active, 1 former)
○MXmail.parsek.cz2015-05-15 → 2017-04-08 · 4 obs
● 2017-04-08 17:50:02
○ 2026-02-22 19:09:50
○ 2026-08-07 19:02:16
●MXmx.web4u.cz2026-02-22 → 2026-08-07 · 3 obs
● 2026-02-22 19:09:50
● 2026-08-07 19:02:16
●A81.91.86.112015-05-15 → 2026-08-07 · 2 obs
● 2026-08-07 19:02:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| parsek.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: 1064ms | 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 |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
parsek.cz points to a single IP number: 81.91.86.11.
Additional host names — www.elektrometal.cz, lagerfeld.cz, itacademy.cz and two others — share IP numbers with parsek.cz.
Name Servers
parsek.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.
parsek.cz shares its name server setup with other domains, including reminio.com, fornets.net, tsezlin.cz and two others.
ns2.web4u.cz and ns.web4u.cz each resolve to two IP addresses: ns2.web4u.cz points to 85.207.53.12 and 2a02:a40:100:28ff::12, while ns.web4u.cz points to 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
parsek.cz has one mail server: mx.web4u.cz.
parsek.cz shares the same mail server setup as other domains, including quiz.cz, gw-int.eu, staziste.cz and two others.
parsek.cz shares mail servers — at least in part — with other domains, including marketo.cz, dentino.cz, smart4smart.cz and two others.
mx.web4u.cz carries two IP numbers: 81.91.87.12 and 2001:1568::7012.