science4u.dk - robtex.com
science4u.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 93.191.156.83🇩🇰 team-blue-denmark93.191.152.0/21 ZITCOM A/S | ||||||
| PTR | linux205.unoeuro.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 | ||||||
| NS | ns4.simply.com | ||||||
| A | 91.197.248.80🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns4.simply.com | ||||||
| TXT | v=spf1 include:spf.simply.com ?all | ||||||
| SOA | ns1.simply.comhostmaster@simply.com 2020-07-29 #90 | ||||||
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 1778401621localtime Sun May 10 10:27:01 2026gmtime Sun Ma... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1778401621 | ||||||
Same first word
science4u.dk |
DNS History
10 records (5 active, 5 former)
●NSns1.simply.com2026-03-22 → 2026-05-10 · 3 obs
● 2026-03-22 10:43:16
● 2026-05-10 08:39:28
○NSns1.surf-town.net2015-05-30 → 2017-05-24 · 4 obs
● 2017-05-24 01:27:46
○ 2026-03-22 10:43:16
○ 2026-05-10 08:39:28
●NSns2.simply.com2026-03-22 → 2026-05-10 · 3 obs
● 2026-03-22 10:43:16
● 2026-05-10 08:39:28
○NSns2.surf-town.net2015-05-30 → 2017-05-24 · 4 obs
● 2017-05-24 01:27:46
○ 2026-03-22 10:43:16
○ 2026-05-10 08:39:28
●NSns3.simply.com2026-03-22 → 2026-05-10 · 3 obs
● 2026-03-22 10:43:16
● 2026-05-10 08:39:28
○NSns3.surf-town.net2015-05-30 → 2017-05-24 · 4 obs
● 2017-05-24 01:27:46
○ 2026-03-22 10:43:16
○ 2026-05-10 08:39:28
●NSns4.simply.com2026-03-22 → 2026-05-10 · 3 obs
● 2026-03-22 10:43:16
● 2026-05-10 08:39:28
○MXmail20.surftown.dk2015-05-30 → 2017-05-24 · 4 obs
● 2017-05-24 01:27:46
○ 2026-03-22 10:43:16
○ 2026-05-10 08:39:28
○A212.97.132.1552015-05-30 → 2017-05-24 · 4 obs
● 2017-05-24 01:27:46
○ 2026-03-22 10:43:16
○ 2026-05-10 08:39:28
●A93.191.156.832026-03-22 → 2026-05-10 · 3 obs
● 2026-03-22 10:43:16
● 2026-05-10 08:39:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk... | - |
| science4u.dk | ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com | - |
✅ Authoritative Response
Server:91.197.248.78
NS records: ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 868ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 93.191.156.83 |
| NS | 4 | ns4.simply.com, ns3.simply.com... |
| TXT | 1 | v=spf1 include:spf.simply.com ?all |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
IP Addresses
science4u.dk resolves to a single IP: 93.191.156.83.
Other host names, for instance nmfv.dk, tolderlund.eu, vv69.dk, dgsk.dk and www.niconet.dk share IP numbers with science4u.dk.
Name Servers
science4u.dk is delegated to four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.
science4u.dk shares some name servers with other domains, for example byggavilla.se, heydenreich.dk, staahle.net, omid.nu and kontorsupermarked.dk.
Host names with two IP numbers: ns1.simply.com points to: 2a02:2339:1:15c::4562:4562 and 91.197.248.78; ns2.simply.com points to: 2a02:2339:4006:101::4562:4562 and 185.25.141.15.
Host names with one IP number: ns3.simply.com points to: 91.197.248.79; ns4.simply.com points to: 91.197.248.80.