topcert.cz - robtex.com
topcert.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.2.196.19🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | 19.196.forpsi.net | ||||||
| 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 | ||||||
| SOA | ns.forpsi.netadmin@forpsi.com 2026-02-28 #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=1774617437 | ||||||
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●NSns.forpsi.net2015-08-04 → 2026-03-27 · 2 obs
● 2026-03-27 14:09:50
○A81.2.194.1282015-08-04 → 2017-03-21 · 4 obs
● 2017-03-21 18:16:10
○ 2026-03-27 07:45:46
○ 2026-03-27 14:09:50
●A81.2.196.192026-03-27 → 2026-03-27 · 3 obs
● 2026-03-27 07:45:46
● 2026-03-27 14:09:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | 8 records |
| topcert.cz | ns.forpsi.net, ns.forpsi.cz, ns.forpsi.it | 2 records |
✅ Authoritative Response
Server:81.2.194.130
NS records: ns.forpsi.net, ns.forpsi.cz, ns.forpsi.it
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1446ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.2.196.19 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
📌 Glue Records Collected
Total: 10
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz...)
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
IP Addresses
topcert.cz points to a single IP number: 81.2.196.19.
Other host names, for instance atwigo.com, makeshop.cz, fotokram.cz, pronajem-bytu.eu and servis22.cz share IP numbers with topcert.cz.
Name Servers
The domain topcert.cz is delegated to three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
topcert.cz shares name servers with other domains at least partially, for instance brokis.eu, unionplast.cz, aao.cz, dancinghouse.cz and banan.it.
these name servers are often used together with the name servers ns.forpsi.us.
Host names with two IP numbers:
ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185
ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165
ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130