und03.sk - robtex.com
und03.sk
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=2018601722 | ||||||
Subdomains
Same first word
und03.sk |
DNS History
10 records (7 active, 3 former)
○NSns.telecom.sk2015-06-12 → 2016-12-29 · 4 obs
● 2016-12-29 11:17:18
○ 2026-03-27 06:32:54
○ 2026-08-13 12:59:58
●NSns1.websupport.sk2026-03-27 → 2026-08-13 · 3 obs
● 2026-03-27 06:32:54
● 2026-08-13 12:59:58
○NSns2.telecom.sk2015-06-12 → 2016-12-29 · 4 obs
● 2016-12-29 11:17:18
○ 2026-03-27 06:32:54
○ 2026-08-13 12:59:58
●NSns2.websupport.sk2026-03-27 → 2026-08-13 · 3 obs
● 2026-03-27 06:32:54
● 2026-08-13 12:59:58
●NSns3.websupport.sk2026-03-27 → 2026-08-13 · 3 obs
● 2026-03-27 06:32:54
● 2026-08-13 12:59:58
●MXmailin1.und03.sk2026-03-27 → 2026-08-13 · 3 obs
● 2026-03-27 06:32:54
● 2026-08-13 12:59:58
●MXmailin2.und03.sk2026-03-27 → 2026-08-13 · 3 obs
● 2026-03-27 06:32:54
● 2026-08-13 12:59:58
○MXmta-in.telekom.sk2015-06-12 → 2016-12-29 · 4 obs
● 2016-12-29 11:17:18
○ 2026-03-27 06:32:54
○ 2026-08-13 12:59:58
●A2a00:4b40:aaaa:2004::52026-03-27 → 2026-08-13 · 2 obs
● 2026-08-13 12:59:58
●A37.9.175.1552026-03-27 → 2026-08-13 · 2 obs
● 2026-08-13 12:59:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | f.tld.sk, g.tld.sk, h.tld.sk, e.tld.sk | - |
| und03.sk | ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk | 6 records |
✅ Authoritative Response
Server:45.10.97.13
NS records: ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 165ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.155 |
| AAAA | 1 | 2a00:4b40:aaaa:2004::5 |
| NS | 3 | ns1.websupport.sk, ns2.websupport.sk... |
| MX | 2 | mailin1.und03.sk (pri: 5), mailin2.und03.sk (pri: 10) |
| TXT | 4 | v=spf1 include:_spf.websupport.sk ~all, v=spf1 a mx include:_spf.m1.websupport.s... |
| SOA | 1 | ns1.websupport.sk admin.websupport.sk |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.websupport.sk, ns1.websupport.sk, ns2.websupport.sk...)
Analysis
Hierarchy
und03.sk serves as the parent of mailin1.und03.sk and mailin2.und03.sk.
IP Addresses
und03.sk directs to two IP numbers, 37.9.175.155 and 2a00:4b40:aaaa:2004::5
*.bekom.sk, 21.238.akruks.sk, picted.it plus two other host names have IP numbers in common with und03.sk.
Name Servers
Three name servers are authoritative for und03.sk: ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
und03.sk partially shares its NS delegation with several other domains, including ecavlos.sk, maledomy.sk, usvaz.sk and two others.
ns1.websupport.sk resolves to 45.10.97.11 and 2a10:bbc0::11. ns2.websupport.sk resolves to 185.71.159.12 and 2a02:250:3::12. ns3.websupport.sk resolves to 45.10.97.13 and 2a10:bbc0::13. All three hostnames point to two IP numbers each.
Mail Servers
und03.sk uses two mail servers, mailin1.und03.sk and mailin2.und03.sk.
Each of the two host names carries two IP addresses: mailin1.und03.sk points to 45.13.137.7 and 2a00:4b40:aaaa:2101:45:13:137:9, and mailin2.und03.sk points to 45.13.137.8 and 2a00:4b40:aaaa:2101:45:13:137:7.