sp4.cz - robtex.com
sp4.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.2.195.60🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | d060wh.forpsi.com | ||||||
| NS | ns.forpsi.net ⭐ 🔒 | ||||||
| A | 2001:15e8:101:1::c282🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.net | ||||||
| A | 81.2.194.130🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.forpsi.net | ||||||
| NS | ns.forpsi.cz 🔒 | ||||||
| A | 2001:15e8:201:1::d1b9🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.cz | ||||||
| A | 81.2.209.185🇨🇿 INTERNET-CZ81.2.209.0/24 | ||||||
| PTR | ns.forpsi.cz | ||||||
| NS | ns.forpsi.it 🔒 | ||||||
| A | 2a00:6d41:2:1::5🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.forpsi.it | ||||||
| A | 95.110.254.165🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | host165-254-110-95.serverdedicati.aruba.it | ||||||
| MX | mxavas.forpsi.com ⭐ | ||||||
| A | 81.2.195.200🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | mxavas.forpsi.com | ||||||
| SOA | ns.forpsi.netadmin@forpsi.com 2026-02-10 #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=1771291036 | ||||||
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns.forpsi.net2015-07-14 → 2026-03-03 · 2 obs
● 2026-03-03 20:04:58
●MXmxavas.forpsi.com2015-07-14 → 2026-03-03 · 2 obs
● 2026-03-03 20:04:58
○A81.2.195.1382015-07-14 → 2017-03-30 · 4 obs
● 2017-03-30 15:28:06
○ 2021-07-19 00:11:56
○ 2026-03-03 20:04:58
●A81.2.195.602021-07-19 → 2026-03-03 · 3 obs
● 2021-07-19 00:11:56
● 2026-03-03 20:04:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| sp4.cz | ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net | 2 records |
✅ Authoritative Response
Server: 81.2.194.130
NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1428ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.2.195.60 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | mxavas.forpsi.com (pri: 10) |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
IP Addresses
sp4.cz points to IP number: 81.2.195.60.
Other host names such as agil.cz, morlor.com, terapie-poradna.cz, mandakova.cz and lyzovani.cz share IPs with sp4.cz.
Name Servers
sp4.cz is delegated to three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
sp4.cz at least partially shares name servers with other domains, for instance essopodvezou.sk, ashk.cz, cstps.cz, ipib.pl and planela.com.
these name servers are often used in conjunction with the name servers ns.forpsi.us.
Host ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185; Host ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165; Host ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130.
Mail Servers
sp4.cz is handled by a single mail server, mxavas.forpsi.com.
The mail server setup for sp4.cz matches that of other domains, for instance patterson.pl, ibaba.hu, bodlas.cz, webtoys.cz and pmp-com.cz.
sp4.cz shares some mail servers with other domains, for instance matousek.cz, factorial.eu and ok1.cz.
mxavas.forpsi.com points to a single IP: 81.2.195.200.