precteno.cz - robtex.com
precteno.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 195.113.180.205🇨🇿 CESNET195.113.0.0/16 -TCZ | ||||||
| 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 2008-09-01 #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=1777038434 | ||||||
Subdomains
mail.precteno.cz |
Same first word
precteno.cz |
Similar names
DNS History
5 records (4 active, 1 former)
○MXmail.precteno.cz2015-07-23 → 2019-01-20 · 4 obs
● 2019-01-20 18:57:40
○ 2026-04-18 21:13:02
○ 2026-04-24 14:16:48
●MXmx.web4u.cz2026-04-18 → 2026-04-24 · 3 obs
● 2026-04-18 21:13:02
● 2026-04-24 14:16:48
●A195.113.180.2052015-07-23 → 2026-04-24 · 2 obs
● 2026-04-24 14:16:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| precteno.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: 1181ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.113.180.205 |
| 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
The parent of mail.precteno.cz is precteno.cz.
IP Addresses
precteno.cz points to an IP address: 195.113.180.205.
Other host names, such as prahavknihovne.cz, k4u.cz and vcela.mlp.cz, share IP numbers with precteno.cz.
Name Servers
Two name servers ns2.web4u.cz and ns.web4u.cz handle the delegation for precteno.cz.
precteno.cz shares the same name server setup as other domains, for instance airshow.cz, medconchrudim.cz, elivp.cz, penzionkolbl.cz and uvm.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
precteno.cz is handled by a single mail server, mx.web4u.cz.
precteno.cz uses the same mail server setup as other domains, for instance angelgames.eu, smoke-shop.eu, rytiri21stoleti.com, brano.group and lmk-cmelak.cz.
precteno.cz shares at least some mail servers with other domains, for instance creditcheck.cz.
mx.web4u.cz resolves to two IPs: 2001:1568::7012 and 81.91.87.12.