study.dk - dns.ninja
study.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.simply.com ⭐ | ||||||
| A | 2a02:2339:1:15c::4562:4562🇩🇰 team-blue-denmark2a02:2339::/36 | ||||||
| PTR | ns1.simply.com | ||||||
| A | 91.197.248.78🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns1.simply.com | ||||||
| NS | ns2.simply.com | ||||||
| A | 2a02:2339:4006:101::4562:4562🇩🇰 team-blue-denmark2a02:2339:4000::/34 | ||||||
| PTR | ns2.simply.com | ||||||
| A | 185.25.141.15🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S | ||||||
| PTR | ns2.simply.com | ||||||
| NS | ns3.simply.com | ||||||
| A | 91.197.248.79🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns3.simply.com | ||||||
| SOA | ns1.simply.comhostmaster@simply.com 2025-04-29 #1 | ||||||
dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | b.nic.dk ⭐ | ||||||
| NS | c.nic.dk | ||||||
| NS | h.nic.dk | ||||||
| NS | l.nic.dk | ||||||
| NS | s.nic.dk | ||||||
| NS | t.nic.dk | ||||||
| TXT | DK zone updateEpoch 1780583041localtime Thu Jun 4 16:24:01 2026gmtime Thu Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1780583041 | ||||||
Same first word
Similar names
DNS History
10 records (3 active, 7 former)
○NSns1.gratisdns.dk2015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
●NSns1.simply.com2026-03-14 → 2026-06-04 · 3 obs
● 2026-03-14 16:06:42
● 2026-06-04 14:33:32
○NSns2.gratisdns.dk2015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
●NSns2.simply.com2026-03-14 → 2026-06-04 · 3 obs
● 2026-03-14 16:06:42
● 2026-06-04 14:33:32
○NSns3.gratisdns.dk2015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
●NSns3.simply.com2026-03-14 → 2026-06-04 · 3 obs
● 2026-03-14 16:06:42
● 2026-06-04 14:33:32
○NSns4.gratisdns.dk2015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
○NSns5.gratisdns.dk2015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
○A2001:67c:3c0:12::532015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
○A91.221.196.2532015-05-28 → 2017-09-19 · 4 obs
● 2017-09-19 09:37:04
○ 2026-03-14 16:06:42
○ 2026-06-04 14:33:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk... | - |
| study.dk | ns1.simply.com, ns3.simply.com, ns2.simply.com | - |
✅ Authoritative Response
Server:91.197.248.79
NS records: ns1.simply.com, ns3.simply.com, ns2.simply.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3816ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns3.simply.com, ns1.simply.com... |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
Name Servers
study.dk carries NS records delegating to ns1.simply.com, ns2.simply.com and ns3.simply.com.
The name servers of study.dk overlap at least partially with those of other domains — among them siutsiu.gl, a9way.dk, cashcasino.dk and two more.
These name servers commonly appear in combination with the name servers ns4.simply.com.
Host names pointing to two IP addresses:
ns1.simply.com resolves to two addresses: 91.197.248.78 and 2a02:2339:1:15c::4562:4562.
ns2.simply.com resolves to two addresses: 185.25.141.15 and 2a02:2339:4006:101::4562:4562.
Host names with one IP number:
The hostname ns3.simply.com resolves to 91.197.248.79.