interstudy.sk - dns.ninja
interstudy.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=2018588786 | ||||||
Subdomains
www.interstudy.sk |
Same first word
Similar names
DNS History
12 records (9 active, 3 former)
●NSns1.dnsbackup.net2015-05-26 → 2026-07-28 · 2 obs
● 2026-07-28 00:11:02
●NSns1.nameserver.sk2015-05-26 → 2026-07-28 · 2 obs
● 2026-07-28 00:11:02
●NSns2.dnsbackup.net2015-05-26 → 2026-07-28 · 2 obs
● 2026-07-28 00:11:02
●NSns2.nameserver.sk2015-05-26 → 2026-07-28 · 2 obs
● 2026-07-28 00:11:02
○MXas.mx-hub.net2015-05-26 → 2017-02-09 · 4 obs
● 2017-02-09 19:16:02
○ 2026-03-29 02:41:10
○ 2026-07-28 00:11:02
○MXas.mx-hub.sk2015-05-26 → 2017-02-09 · 4 obs
● 2017-02-09 19:16:02
○ 2026-03-29 02:41:10
○ 2026-07-28 00:11:02
●MXmailin.mx-hub.net2015-05-26 → 2026-07-28 · 2 obs
● 2026-07-28 00:11:02
●A195.181.248.2182026-03-29 → 2026-07-28 · 3 obs
● 2026-03-29 02:41:10
● 2026-07-28 00:11:02
○A213.215.115.122015-05-26 → 2017-02-09 · 4 obs
● 2017-02-09 19:16:02
○ 2026-03-29 02:41:10
○ 2026-07-28 00:11:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sk | e.tld.sk, f.tld.sk, g.tld.sk, h.tld.sk | - |
| interstudy.sk | ns2.nameserver.sk, ns1.dnsbackup.net, ns1.nameserver.sk, ns2.dnsbackup.net | 4 records |
✅ Authoritative Response
Server:185.65.223.35
NS records: ns2.nameserver.sk, ns1.dnsbackup.net, ns1.nameserver.sk, ns2.dnsbackup.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 606ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 195.181.248.218 |
| NS | 4 | ns1.nameserver.sk, ns2.nameserver.sk... |
| MX | 4 | mailin.mx-hub.sk (pri: 5), mailin.mx-hub.eu (pri: 5)... |
| TXT | 4 | v=spf1 a mx include:_spf.nameserver.sk -, v=spf2.0/mfrom,pra +a +mx include:_spf2.... |
| SOA | 1 | ns1.dnsbackup.net root.dnsbackup.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.nameserver.sk, ns2.nameserver.sk, ns1.nameserver.sk...)
Analysis
Hierarchy
interstudy.sk is the parent zone for www.interstudy.sk.
IP Addresses
interstudy.sk points to a single IP number: 195.181.248.218.
Additional host names — studyfest.sk, highschool.sk, vps889.nameserver.sk and two others — share IP numbers with interstudy.sk.
Name Servers
interstudy.sk has four authoritative name servers: ns1.dnsbackup.net, ns2.dnsbackup.net, ns1.nameserver.sk and ns2.nameserver.sk.
interstudy.sk partially shares its NS delegation with several other domains, including michalmesko.com, kolotoc.cz, bsmoto.sk and two others.
These name servers regularly co-occur with the name servers ns.axfone.cz, ns.axfone.eu and ns.axfone.sk.
ns1.dnsbackup.net, ns2.dnsbackup.net, ns1.nameserver.sk and ns2.nameserver.sk each resolve to two IP addresses. ns1.dnsbackup.net resolves to 178.62.60.201 and 2a03:b0c0:1:d0::1090:2001. ns2.dnsbackup.net resolves to 185.65.223.35 and 2a00:1e40:a:53::5. ns1.nameserver.sk also resolves to 185.65.223.35 and 2a00:1e40:a:53::5. ns2.nameserver.sk resolves to 217.31.48.201 and 2001:1ab0:7e1e:2::5.
These two host names — ns2.dnsbackup.net and ns1.nameserver.sk — each point to 2a00:1e40:a:53::5 IP addresses.
These two host names — ns2.dnsbackup.net and ns1.nameserver.sk — each point to 185.65.223.35 IP addresses.
Mail Servers
interstudy.sk has four mail servers: mailin.mx-hub.cz, mailin.mx-hub.eu, mailin.mx-hub.net and mailin.mx-hub.sk.
interstudy.sk shares mail servers — at least in part — with other domains, including dtelektronik.sk, gator.sk, klimo.eu and two others.
mailin.mx-hub.cz, mailin.mx-hub.eu, mailin.mx-hub.net and mailin.mx-hub.sk each carry two IP addresses. mailin.mx-hub.cz has 130.193.14.152 and 2001:1ab0:7e1f:1::1:3; mailin.mx-hub.eu has 130.193.14.153 and 2001:1ab0:7e1f:1::1:4; mailin.mx-hub.net has 185.102.21.54 and 2001:880:0:15::177; mailin.mx-hub.sk has 185.102.21.195 and 2001:880:0:15::60.