knowbe4.sk - robtex.com
knowbe4.sk
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.2.196.170🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | admin.grhosting.cz | ||||||
| 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 2026-01-05 #1 | ||||||
sk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | m.tld.sk ⭐ | ||||||
| NS | e.tld.sk | ||||||
| NS | f.tld.sk | ||||||
| NS | g.tld.sk | ||||||
| NS | h.tld.sk | ||||||
| SOA | m.tld.skhostmaster@sk-nic.sk serial=2018594122 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns.forpsi.net2026-06-10 → 2026-08-04 · 2 obs
● 2026-08-04 12:53:42
●A81.2.196.1702026-06-10 → 2026-08-04 · 2 obs
● 2026-08-04 12:53:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | h.tld.sk, f.tld.sk, e.tld.sk, g.tld.sk | 8 records |
| knowbe4.sk | ns.forpsi.it, ns.forpsi.net, ns.forpsi.cz | - |
✅ Authoritative Response
Server:81.2.194.130
NS records: ns.forpsi.it, ns.forpsi.net, ns.forpsi.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowbe4.sk (unsigned zone)
⏱️ Timing
Total: 855ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.2.196.170 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (h.tld.sk, g.tld.sk, f.tld.sk...)
Analysis
IP Addresses
knowbe4.sk directs to one IP number, which is 81.2.196.170.
Among the host names that share IP numbers with knowbe4.sk are winmau.eu, slaviapraha.com, 1998.cz and two others.
Name Servers
knowbe4.sk is delegated to three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
knowbe4.sk partially shares its NS delegation with several other domains, including stoore.cz, sceletiumextract.com, porodnice.eu and two others.
These name servers often co-occur with the name servers ns.forpsi.us.
ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net each resolve to two IP addresses: ns.forpsi.cz resolves to 81.2.209.185 and 2001:15e8:201:1::d1b9; ns.forpsi.it resolves to 95.110.254.165 and 2a00:6d41:2:1::5; ns.forpsi.net resolves to 81.2.194.130 and 2001:15e8:101:1::c282.