alc.sk - robtex.com
alc.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=2018580511 | ||||||
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
●NSns1.websupport.sk2015-08-25 → 2026-07-18 · 2 obs
● 2026-07-18 03:46:40
●NSns2.websupport.sk2015-08-25 → 2026-07-18 · 2 obs
● 2026-07-18 03:46:40
●NSns3.websupport.sk2015-08-25 → 2026-07-18 · 2 obs
● 2026-07-18 03:46:40
○MXmailin1.alc.sk2015-08-25 → 2017-01-12 · 4 obs
● 2017-01-12 04:11:52
○ 2026-06-16 09:49:00
○ 2026-07-18 03:46:40
○MXmailin2.alc.sk2015-08-25 → 2017-01-12 · 4 obs
● 2017-01-12 04:11:52
○ 2026-06-16 09:49:00
○ 2026-07-18 03:46:40
○MXmailinbackup1.alc.sk2015-08-25 → 2016-03-13 · 4 obs
● 2016-03-13 02:11:50
○ 2016-07-10 10:20:42
○ 2026-07-18 03:46:40
●MXmx10.websupport.sk2026-06-16 → 2026-07-18 · 3 obs
● 2026-06-16 09:49:00
● 2026-07-18 03:46:40
●MXmx20.websupport.sk2026-06-16 → 2026-07-18 · 3 obs
● 2026-06-16 09:49:00
● 2026-07-18 03:46:40
○A195.210.29.82015-08-25 → 2017-01-12 · 4 obs
● 2017-01-12 04:11:52
○ 2026-06-16 09:49:00
○ 2026-07-18 03:46:40
●A2a00:4b40:aaaa:2009::52026-06-16 → 2026-07-18 · 3 obs
● 2026-06-16 09:49:00
● 2026-07-18 03:46:40
●A37.9.175.1952026-06-16 → 2026-07-18 · 3 obs
● 2026-06-16 09:49:00
● 2026-07-18 03:46:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | e.tld.sk, f.tld.sk, g.tld.sk, h.tld.sk | - |
| alc.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: 352ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.195 |
| AAAA | 1 | 2a00:4b40:aaaa:2009::5 |
| NS | 3 | ns1.websupport.sk, ns2.websupport.sk... |
| MX | 2 | mx10.websupport.sk (pri: 10), mx20.websupport.sk (pri: 100) |
| TXT | 1 | 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
IP Addresses
alc.sk has two IP addresses: 37.9.175.195 and 2a00:4b40:aaaa:2009::5
reaktortest.sk, voglio.sk, filatelista.sk plus two other host names have IP numbers in common with alc.sk.
Name Servers
alc.sk carries NS records delegating to ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
The name servers of alc.sk overlap at least partially with those of other domains — among them plysakovo.cz, priori-incantatem.sk, skpay.sk and two more.
The name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu are commonly seen alongside these name servers.
ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk are three hostnames that each resolve to a pair of IP addresses: ns1.websupport.sk to 45.10.97.11 and 2a10:bbc0::11, ns2.websupport.sk to 185.71.159.12 and 2a02:250:3::12, and ns3.websupport.sk to 45.10.97.13 and 2a10:bbc0::13.
Mail Servers
alc.sk uses two mail servers, mx10.websupport.sk and mx20.websupport.sk.
The mail server setup of alc.sk matches that of other domains such as politicface.com, prowedaward.com, elasticsro.sk and two others.
mx10.websupport.sk and mx20.websupport.sk both carry two IP addresses. The A records for mx10.websupport.sk are 45.13.137.110 and 2a00:4b40:aaaa:2101:45:13:137:110; the A records for mx20.websupport.sk are 45.13.137.109 and 2a00:4b40:aaaa:2101:45:13:137:109.