900.dk - robtex.com
900.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 94.231.107.217🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S | ||||||
| PTR | linux3.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 | ||||||
| MX | mx.simply.com ⭐ | ||||||
| A | 94.231.106.20🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S | ||||||
| PTR | mx.simply.com | ||||||
| TXT | v=spf1 include:spf.qdc.dk ~all | ||||||
| SOA | ns1.simply.comhostmaster@simply.com 2025-04-23 #0 | ||||||
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 1771291441localtime Tue Feb 17 02:24:01 2026gmtime Tue Fe... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1771291261 | ||||||
Same first word
Similar names
DNS History
17 records (6 active, 11 former)
●NSns1.simply.com2026-03-14 → 2026-03-16 · 3 obs
● 2026-03-14 14:09:14
● 2026-03-16 07:26:56
○NSns1.unoeuro.com2015-07-08 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
●NSns2.simply.com2026-03-14 → 2026-03-16 · 3 obs
● 2026-03-14 14:09:14
● 2026-03-16 07:26:56
○NSns2.unoeuro.com2015-07-08 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
●NSns3.simply.com2026-03-14 → 2026-03-16 · 3 obs
● 2026-03-14 14:09:14
● 2026-03-16 07:26:56
○NSns3.unoeuro.com2015-07-08 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
●NSns4.simply.com2026-03-14 → 2026-03-16 · 3 obs
● 2026-03-14 14:09:14
● 2026-03-16 07:26:56
○NSns4.unoeuro.com2015-07-08 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
○MXmail.900.dk2015-07-08 → 2015-07-08 · 3 obs
○ 2015-11-28 02:45:06
○ 2026-03-16 07:26:56
●MXmx.simply.com2026-03-14 → 2026-03-16 · 3 obs
● 2026-03-14 14:09:14
● 2026-03-16 07:26:56
○MXmx.spamfilter.io2015-11-28 → 2017-08-27 · 6 obs
● 2015-11-28 02:45:06
○ 2016-03-02 10:37:50
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
○MXmx.unoeuro.com2015-11-28 → 2017-08-27 · 5 obs
● 2015-11-28 02:45:06
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
○MXmx01.qdc.dk2015-07-08 → 2015-07-08 · 3 obs
○ 2015-11-28 02:45:06
○ 2026-03-16 07:26:56
○MXmx1.spamfilter.cc2017-08-27 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
○MXmx2.spamfilter.cc2017-08-27 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
○MXmx3.spamfilter.cc2017-08-27 → 2017-08-27 · 4 obs
● 2017-08-27 14:22:06
○ 2026-03-14 14:09:14
○ 2026-03-16 07:26:56
●A94.231.107.2172015-07-08 → 2026-03-16 · 2 obs
● 2026-03-16 07:26:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | l.nic.dk, c.nic.dk, b.nic.dk, h.nic.dk... | - |
| 900.dk | ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com | - |
✅ Authoritative Response
Server: 185.25.141.15
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: 1538ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.231.107.217 |
| NS | 4 | ns2.simply.com, ns1.simply.com... |
| MX | 1 | mx.simply.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.qdc.dk ~all |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
IP Addresses
900.dk points to a single IP: 94.231.107.217.
Other host names, for instance epona.eu, mikrotek.dk, webres.dk, bambusudsalg.dk and kinball.dk share IP numbers with 900.dk.
Name Servers
900.dk's delegation is handled by four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.
900.dk partially shares name servers with other domains; examples include heartful.dk, rithuset.se, barnligt.dk, villaguide.dk and bandzone.at.
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.
Mail Servers
900.dk is handled by a single mail server, mx.simply.com.
900.dk has the same mail server setup as other domains, including (0x706f726e)o.dk, dittkorkort.se, jolag.dk, schildknecht.dk and tinasverden.dk.
mx.simply.com points to a single IP: 94.231.106.20.