certek.sk - robtex.com
certek.sk
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a00:4b40:aaaa:2009::6🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 37.9.175.195🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| NS | ns1.websupport.sk ⭐ | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.sk | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.sk | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns3.websupport.eu | ||||||
| MX | mailin1.certek.sk ⭐ | ||||||
| A | 37.9.169.112🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.168.0/21 Websupport, s.r.o. | ||||||
| PTR | mail-proxymxphy-6.websupport.sk | ||||||
| MX | mailin2.certek.sk(10) | ||||||
| A | 37.9.169.111🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.168.0/21 Websupport, s.r.o. | ||||||
| PTR | mail-proxymxphy-7.websupport.sk | ||||||
| TXT | v=spf1 a mx include:_spf.m1.websupport.sk ?all | ||||||
| TXT | spf2.0/pra a mx include:_sid.m1.websupport.sk ?all | ||||||
| SOA | ns1.websupport.skadmin@websupport.sk serial=1781234193 | ||||||
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=2018580777 | ||||||
Subdomains
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
●NSns1.websupport.sk2015-06-27 → 2026-07-18 · 2 obs
● 2026-07-18 15:19:06
●NSns2.websupport.sk2015-06-27 → 2026-07-18 · 2 obs
● 2026-07-18 15:19:06
●NSns3.websupport.sk2015-06-27 → 2026-07-18 · 2 obs
● 2026-07-18 15:19:06
●MXmailin1.certek.sk2015-06-27 → 2026-07-18 · 2 obs
● 2026-07-18 15:19:06
●MXmailin2.certek.sk2015-06-27 → 2026-07-18 · 2 obs
● 2026-07-18 15:19:06
○MXmailinbackup1.certek.sk2015-06-27 → 2016-04-12 · 4 obs
● 2016-04-12 21:16:14
○ 2017-02-16 14:43:34
○ 2026-07-18 15:19:06
●A2a00:4b40:aaaa:2009::62026-06-13 → 2026-07-18 · 3 obs
● 2026-06-13 10:02:30
● 2026-07-18 15:19:06
○A37.9.175.192015-11-07 → 2017-02-16 · 5 obs
● 2015-11-07 00:54:48
● 2017-02-16 14:43:34
○ 2019-04-02 17:49:40
○ 2026-07-18 15:19:06
●A37.9.175.1952026-06-13 → 2026-07-18 · 3 obs
● 2026-06-13 10:02:30
● 2026-07-18 15:19:06
○A37.9.175.72019-04-02 → 2019-04-02 · 4 obs
● 2019-04-02 17:49:40
○ 2026-06-13 10:02:30
○ 2026-07-18 15:19:06
○A66.6.44.42015-06-27 → 2015-06-27 · 3 obs
○ 2015-11-07 00:54:48
○ 2026-07-18 15:19:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | f.tld.sk, g.tld.sk, h.tld.sk, e.tld.sk | 8 records |
| certek.sk | ns2.websupport.sk, ns3.websupport.sk, ns1.websupport.sk | 6 records |
✅ Authoritative Response
Server:185.71.159.12
NS records: ns2.websupport.sk, ns3.websupport.sk, ns1.websupport.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 349ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.195 |
| AAAA | 1 | 2a00:4b40:aaaa:2009::6 |
| NS | 3 | ns1.websupport.sk, ns2.websupport.sk... |
| MX | 2 | mailin1.certek.sk (pri: 5), mailin2.certek.sk (pri: 10) |
| TXT | 2 | v=spf1 a mx include:_spf.m1.websupport.s, spf2.0/pra a mx include:_sid.m1.websuppo |
| SOA | 1 | ns1.websupport.sk admin.websupport.sk |
📌 Glue Records Collected
Total: 14
In-bailiwick: 8 (e.tld.sk, f.tld.sk, g.tld.sk...)
Out-of-bailiwick: 6 (ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk...)
Analysis
Hierarchy
certek.sk is the parent domain of mailin1.certek.sk and mailin2.certek.sk.
IP Addresses
certek.sk has two IP addresses: 37.9.175.195 and 2a00:4b40:aaaa:2009::6
Additional host names — invisible.sk, mailin1.revista.sk, mailin1.kuchyneonline.sk and two others — share IP numbers with certek.sk.
Name Servers
certek.sk carries NS records delegating to ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
The name servers of certek.sk overlap at least partially with those of other domains — among them ebix.sk, familytree.cz, karrier.sk and two more.
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
certek.sk has two mail servers: mailin1.certek.sk and mailin2.certek.sk.
Both mailin1.certek.sk and mailin2.certek.sk have a single IP address each — mailin1.certek.sk resolves to 37.9.169.112 while mailin2.certek.sk resolves to 37.9.169.111.