improvisio.cz - robtex.com
improvisio.cz
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=1774396035 | ||||||
Subdomains
edmonton.improvisio.cz |
new-chicago.improvisio.cz |
dallas.improvisio.cz |
webdev.improvisio.cz |
145.improvisio.cz |
boston.improvisio.cz |
www.improvisio.cz |
Same first word
improvisio.cz |
DNS History
7 records (6 active, 1 former)
●A93.190.48.92026-03-08 → 2026-03-25 · 3 obs
● 2026-03-08 12:14:18
● 2026-03-25 00:04:02
○A94.23.169.1452015-08-15 → 2017-07-23 · 4 obs
● 2017-07-23 22:10:48
○ 2026-03-08 12:14:18
○ 2026-03-25 00:04:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| improvisio.cz | ns1.web4ce.cz, ns2.web4ce.cz | 2 records |
✅ Authoritative Response
Server:93.190.48.250
NS records: ns1.web4ce.cz, ns2.web4ce.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for improvisio.cz (unsigned zone)
⏱️ Timing
Total: 819ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 93.190.48.9 |
| NS | 2 | ns1.web4ce.cz, ns2.web4ce.cz |
| MX | 3 | mx2.web4ce.cz (pri: 10), mx1.web4ce.cz (pri: 10)... |
| TXT | 1 | v=spf1 +mx a a:monitoring.improvisio.cz |
| SOA | 1 | ns1.web4ce.cz domeny.web4ce.cz |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.web4ce.cz, ns2.web4ce.cz)
Analysis
Hierarchy
improvisio.cz is the parent of edmonton.improvisio.cz, new-chicago.improvisio.cz, dallas.improvisio.cz, webdev.improvisio.cz, 145.improvisio.cz and several other host names.
IP Addresses
improvisio.cz points to a single IP: 93.190.48.9.
Other host names, for instance oyster.cz, strileni.cz, tatraprim.sk, mamen.cz and fritz-berger.cz share IP numbers with improvisio.cz.
Name Servers
improvisio.cz's delegation is to two name servers ns1.web4ce.cz and ns2.web4ce.cz.
improvisio.cz shares the same name server configuration as other domains, such as darkpress.cz, vstour.info, trvalkovaskolka.cz, os-tap.cz and bosaci.cz.
Host names with two IP numbers: ns1.web4ce.cz points to 2a02:c600:0:4::1 and 93.190.48.250; ns2.web4ce.cz points to 2a02:c600:0:4::2 and 93.190.49.250
Mail Servers
improvisio.cz is handled by three mail servers: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.
improvisio.cz shares some mail servers with other domains, including intexpo.cz, cwbc.cz, stockerclub.cz, autolakovnazalek.cz and garret.cz.
Host names with three IP numbers
The host names mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz point to: 93.190.48.73, 93.190.48.74 and 93.190.48.75.
Host names that point to 93.190.48.73: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.
Host names that point to 93.190.48.74: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.
Host names that point to 93.190.48.75: mx1.web4ce.cz, mx2.web4ce.cz and mx3.web4ce.cz.