21skills.dk - robtex.com
21skills.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 94.231.103.114🇩🇰 team-blue-denmark94.231.96.0/20 ZITCOM A/S | ||||||
| PTR | linux99.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.simply.com -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 1778735701localtime Thu May 14 07:15:01 2026gmtime Thu Ma... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1778735701 | ||||||
Subdomains
www.21skills.dk |
Same first word
Similar names
DNS History
12 records (6 active, 6 former)
●NSns1.simply.com2026-04-09 → 2026-05-14 · 3 obs
● 2026-04-09 04:17:20
● 2026-05-14 05:46:06
○NSns1.unoeuro.com2018-05-10 → 2018-05-10 · 3 obs
○ 2026-04-09 04:17:20
○ 2026-05-14 05:46:06
●NSns2.simply.com2026-04-09 → 2026-05-14 · 3 obs
● 2026-04-09 04:17:20
● 2026-05-14 05:46:06
○NSns2.unoeuro.com2018-05-10 → 2018-05-10 · 3 obs
○ 2026-04-09 04:17:20
○ 2026-05-14 05:46:06
●NSns3.simply.com2026-04-09 → 2026-05-14 · 3 obs
● 2026-04-09 04:17:20
● 2026-05-14 05:46:06
○NSns3.unoeuro.com2018-05-10 → 2018-05-10 · 3 obs
○ 2026-04-09 04:17:20
○ 2026-05-14 05:46:06
●NSns4.simply.com2026-04-09 → 2026-05-14 · 3 obs
● 2026-04-09 04:17:20
● 2026-05-14 05:46:06
○NSns4.unoeuro.com2018-05-10 → 2018-05-10 · 3 obs
○ 2026-04-09 04:17:20
○ 2026-05-14 05:46:06
●MXmx.simply.com2026-04-09 → 2026-05-14 · 3 obs
● 2026-04-09 04:17:20
● 2026-05-14 05:46:06
○MXmx.unoeuro.com2018-05-10 → 2018-05-10 · 3 obs
○ 2026-04-09 04:17:20
○ 2026-05-14 05:46:06
○A146.185.161.1262018-05-10 → 2018-05-10 · 3 obs
○ 2026-04-09 04:17:20
○ 2026-05-14 05:46:06
●A94.231.103.1142026-04-09 → 2026-05-14 · 3 obs
● 2026-04-09 04:17:20
● 2026-05-14 05:46:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk... | - |
| 21skills.dk | ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com | - |
✅ Authoritative Response
Server:91.197.248.79
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: 1430ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.231.103.114 |
| NS | 4 | ns3.simply.com, ns1.simply.com... |
| MX | 1 | mx.simply.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.simply.com -all |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
Hierarchy
21skills.dk is the parent of www.21skills.dk.
IP Addresses
21skills.dk resolves to a single IP address: 94.231.103.114.
Other host names including amaroq.se, advancedhair.dk, hvht.dk, *.markon.as and vibekeknudsen.com share IP numbers with 21skills.dk.
Name Servers
21skills.dk is delegated to four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.
21skills.dk at least partially shares name servers with other domains, including swim.dk, fcna.dk, buddhistisk-bisaettelse.dk, uvsport.dk and joc.se.
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
21skills.dk is handled by a single mail server, mx.simply.com.
21skills.dk shares its mail server setup with other domains, including cassandrachrom.dk, shopbase.dk, norwood.dk, dall-int.com and cms-test.dk.
21skills.dk shares some mail servers with other domains, at least partially, for instance nedenes.net.
mx.simply.com points to a single IP: 94.231.106.20.