dev.sk - dns.ninja
dev.sk
| DNSSEC | ⚠️ Not signed | ||||||
| A | 37.9.175.5🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| PTR | 5.175.9.37.in-addr.arpa.websupport.sk | ||||||
| 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.dev.sk ⭐ | ||||||
| A | 37.9.169.110🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.168.0/21 Websupport, s.r.o. | ||||||
| PTR | mail-proxymxphy-8.websupport.sk | ||||||
| MX | mailin2.dev.sk(100) | ||||||
| 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.websupport.sk ?all | ||||||
| TXT | spf2.0/pra a mx include:_sid.websupport.sk ?all | ||||||
| SOA | ns1.websupport.skadmin@websupport.sk serial=1715000459 | ||||||
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=2018581443 | ||||||
Subdomains
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NSns.ncore.sk2015-08-07 → 2017-07-30 · 4 obs
● 2017-07-30 09:17:28
○ 2026-02-15 17:38:46
○ 2026-07-19 22:45:22
●NSns1.websupport.sk2026-02-15 → 2026-07-19 · 3 obs
● 2026-02-15 17:38:46
● 2026-07-19 22:45:22
○NSns2.ncore.sk2015-08-07 → 2017-07-30 · 4 obs
● 2017-07-30 09:17:28
○ 2026-02-15 17:38:46
○ 2026-07-19 22:45:22
●NSns2.websupport.sk2026-02-15 → 2026-07-19 · 3 obs
● 2026-02-15 17:38:46
● 2026-07-19 22:45:22
●NSns3.websupport.sk2026-02-15 → 2026-07-19 · 3 obs
● 2026-02-15 17:38:46
● 2026-07-19 22:45:22
○MXlnx-websrv2.ncore.sk2015-08-07 → 2017-07-30 · 4 obs
● 2017-07-30 09:17:28
○ 2026-02-15 17:38:46
○ 2026-07-19 22:45:22
●MXmailin1.dev.sk2026-02-15 → 2026-07-19 · 3 obs
● 2026-02-15 17:38:46
● 2026-07-19 22:45:22
●MXmailin2.dev.sk2026-02-15 → 2026-07-19 · 3 obs
● 2026-02-15 17:38:46
● 2026-07-19 22:45:22
○A217.75.82.2152015-08-07 → 2017-07-30 · 4 obs
● 2017-07-30 09:17:28
○ 2026-02-15 17:38:46
○ 2026-07-19 22:45:22
●A37.9.175.52026-02-15 → 2026-07-19 · 3 obs
● 2026-02-15 17:38:46
● 2026-07-19 22:45:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | h.tld.sk, g.tld.sk, e.tld.sk, f.tld.sk | 8 records |
| dev.sk | ns3.websupport.sk, ns1.websupport.sk, ns2.websupport.sk | 6 records |
✅ Authoritative Response
Server:45.10.97.13
NS records: ns3.websupport.sk, ns1.websupport.sk, ns2.websupport.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3307ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.5 |
| NS | 3 | ns1.websupport.sk, ns2.websupport.sk... |
| MX | 2 | mailin1.dev.sk (pri: 10), mailin2.dev.sk (pri: 100) |
| TXT | 2 | v=spf1 a mx include:_spf.websupport.sk ?, spf2.0/pra a mx include:_sid.websupport. |
| SOA | 1 | ns1.websupport.sk admin.websupport.sk |
📌 Glue Records Collected
Total: 14
In-bailiwick: 8 (h.tld.sk, g.tld.sk, f.tld.sk...)
Out-of-bailiwick: 6 (ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk...)
Analysis
Hierarchy
dev.sk is the parent domain of mailin1.dev.sk, ns2.dev.sk, mailin2.dev.sk and ns1.dev.sk.
IP Addresses
dev.sk resolves to one IP address: 37.9.175.5.
viamo.org, mbtaxi.sk, silk-design.com and two other host names share IP numbers with dev.sk.
Name Servers
dev.sk has three name servers — ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
dev.sk shares at least some of its name servers with other domains, including k6.sk, zinkorot.sk, aura-soma.sk and two others.
These name servers are frequently seen alongside ns1.websupport.at, ns2.websupport.at, ns3.websupport.at and 3 other name servers.
Each of ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk points to two IP numbers. ns1.websupport.sk points to 45.10.97.11 and 2a10:bbc0::11. ns2.websupport.sk points to 185.71.159.12 and 2a02:250:3::12. ns3.websupport.sk points to 45.10.97.13 and 2a10:bbc0::13.
Mail Servers
Mail for dev.sk is handled by two mail servers — mailin1.dev.sk and mailin2.dev.sk.
mailin1.dev.sk and mailin2.dev.sk each resolve to one IP number: mailin1.dev.sk points to 37.9.169.110 and mailin2.dev.sk points to 37.9.169.111.