study.nu - dns.ninja
study.nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 94.231.103.100🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S | ||||||
| PTR | dnsforward.simply.com | ||||||
| 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 2026-07-02 #2 | ||||||
nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | catcher-in-the-rye.nic.nu ⭐ | ||||||
| NS | a.ns.nu | ||||||
| NS | c.ns.nu | ||||||
| NS | d.ns.nu | ||||||
| NS | m.ns.nu | ||||||
| NS | y.ns.nu | ||||||
| NS | z.ns.nu | ||||||
| TXT | id:7924bc58-42e0-4a95-b25e-ebb912fa5f2d | ||||||
| TXT | NU zone update: 2026-08-12 08:24:21 +0000 (EPOCH 1786523061) (auto) | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1786523112 | ||||||
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSns1.hyp.net2015-05-22 → 2026-02-16 · 4 obs
● 2026-02-16 22:31:40
○ 2026-08-09 16:08:00
○ 2026-08-12 09:15:20
●NSns1.simply.com2026-08-09 → 2026-08-12 · 3 obs
● 2026-08-09 16:08:00
● 2026-08-12 09:15:20
○NSns2.hyp.net2015-05-22 → 2026-02-16 · 4 obs
● 2026-02-16 22:31:40
○ 2026-08-09 16:08:00
○ 2026-08-12 09:15:20
●NSns2.simply.com2026-08-09 → 2026-08-12 · 3 obs
● 2026-08-09 16:08:00
● 2026-08-12 09:15:20
○NSns3.hyp.net2015-05-22 → 2026-02-16 · 4 obs
● 2026-02-16 22:31:40
○ 2026-08-09 16:08:00
○ 2026-08-12 09:15:20
●NSns3.simply.com2026-08-09 → 2026-08-12 · 3 obs
● 2026-08-09 16:08:00
● 2026-08-12 09:15:20
○A194.63.248.702016-03-30 → 2026-02-16 · 4 obs
● 2026-02-16 22:31:40
○ 2026-08-09 16:08:00
○ 2026-08-12 09:15:20
○A2a01:5b40:0:4070::12016-03-30 → 2026-02-16 · 4 obs
● 2026-02-16 22:31:40
○ 2026-08-09 16:08:00
○ 2026-08-12 09:15:20
●A94.231.103.1002026-08-09 → 2026-08-12 · 3 obs
● 2026-08-09 16:08:00
● 2026-08-12 09:15:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | m.ns.nu, z.ns.nu, c.ns.nu, a.ns.nu... | 12 records |
| study.nu | ns2.simply.com, ns3.simply.com, ns1.simply.com | - |
✅ Authoritative Response
Server:185.25.141.15
NS records: ns2.simply.com, ns3.simply.com, ns1.simply.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1197ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.231.103.100 |
| NS | 3 | ns3.simply.com, ns1.simply.com... |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.ns.nu, c.ns.nu, d.ns.nu...)
Analysis
IP Addresses
study.nu resolves to one IP address: 94.231.103.100.
ingredien.eu, gm-plast.dk, alu-comp.com and two other host names share IP numbers with study.nu.
Name Servers
study.nu has three name servers — ns1.simply.com, ns2.simply.com and ns3.simply.com.
The name servers of study.nu overlap at least partially with those of other domains — among them clauseriksen.net, dansis.dk, breitholtz.org and two more.
These name servers commonly appear in combination with the name servers ns4.simply.com.
Hostnames that resolve to two IP addresses:
ns1.simply.com resolves to 91.197.248.78 and 2a02:2339:1:15c::4562:4562.
ns2.simply.com resolves to 185.25.141.15 and 2a02:2339:4006:101::4562:4562.
Hosts with just one IP address:
ns3.simply.com resolves to 91.197.248.79.