4ff.dk - dns.ninja
4ff.dk
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 1783101061localtime Fri Jul 3 19:51:01 2026gmtime Fri Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1783101061 | ||||||
Same first word
4ff.com.pl |
4ff.nl |
4ff.cn |
4ff.co.uk |
4ff.de |
4ff.co |
4ff.eu |
4ff.net |
4ff.com |
4ff.com.cn |
4ff.io |
4ff.us |
4ff.dk |
4ff.pro |
4ff.be |
4ff.ai |
Similar names
DNS History
9 records (7 active, 2 former)
●NSns13.kpn.net2026-05-17 → 2026-07-03 · 3 obs
● 2026-05-17 08:04:34
● 2026-07-03 17:57:18
●NSns3.kpn.net2026-05-17 → 2026-07-03 · 3 obs
● 2026-05-17 08:04:34
● 2026-07-03 17:57:18
●MXedge.werkonline.nu2020-11-08 → 2026-07-03 · 3 obs
● 2020-11-08 03:50:50
● 2026-07-03 17:57:18
○MXetrn.is.nl2015-08-22 → 2020-11-08 · 4 obs
● 2020-11-08 03:50:50
○ 2026-05-17 08:04:34
○ 2026-07-03 17:57:18
○MXmx.is.nl2015-08-22 → 2019-03-20 · 4 obs
● 2019-03-20 03:35:56
○ 2020-11-08 03:50:50
○ 2026-07-03 17:57:18
●A82.201.43.682015-08-22 → 2026-07-03 · 2 obs
● 2026-07-03 17:57:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | c.nic.dk, l.nic.dk, b.nic.dk, s.nic.dk... | - |
| 4ff.dk | ns02.is.nl, ns01.is.nl, ns03.is.nl | - |
✅ Authoritative Response
Server:213.75.63.34
NS records: ns02.is.nl, ns01.is.nl, ns03.is.nl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 4ff.dk (unsigned zone)
⏱️ Timing
Total: 751ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 82.201.43.68 |
| NS | 5 | ns03.is.nl, ns02.is.nl... |
| MX | 1 | edge.werkonline.nu (pri: 10) |
| SOA | 1 | ns3.kpn.net zonemaster.kpn.com |
Analysis
IP Addresses
4ff.dk resolves to one IP address: 82.201.43.68.
jamweb-003.ux.is.nl, jam.ux.is.nl, 4ff.be and two other host names share IP numbers with 4ff.dk.
Name Servers
4ff.dk has five name servers, which are ns13.kpn.net, ns3.kpn.net, ns01.is.nl and two others.
At least some of 4ff.dk's name servers are shared with other domains, for example wintelligent.it, 94.148.217.in-addr.arpa, netground.io and two more.
These name servers tend to co-occur with ns02.is.nl, ns03.is.nl, ns7.kpn.net and 5 other name servers in the same DNS delegations.
Hostnames that resolve to two IP addresses:
ns13.kpn.net directs traffic to 213.75.63.34 and 2a02:a47f:ac:1::1353.
ns3.kpn.net directs traffic to 194.151.228.42 and 2a02:a47f:ac:1::353.
ns01.is.nl directs traffic to 213.75.63.33 and 2a02:a47f:ac:1::1153.
ns02.is.nl directs traffic to 213.75.63.68 and 2a02:a47f:ac:1::1253.
ns03.is.nl directs traffic to 213.75.63.34 and 2a02:a47f:ac:1::1353.
Both ns13.kpn.net and ns03.is.nl resolve to 2a02:a47f:ac:1::1353 IP addresses each.
Both ns13.kpn.net and ns03.is.nl resolve to 213.75.63.34 IP addresses each.
Mail Servers
Mail for 4ff.dk is handled by a single mail server, edge.werkonline.nu.
4ff.dk uses an identical mail server configuration to several other domains — among them eurocompetitionlaw.com, *.murphyisdeath.nl, isopschool.nl and two more.
4ff.dk has at least partial mail server overlap with other domains such as wehako.com, persoonlijkeinternetpagina.nl, medicalhealthcaregroup.nl and two more.
It is common to see these mail servers combined with the mail servers bounce.argewebhosting.nl, etrn.is.nl and mail.my-mps.com.
edge.werkonline.nu directs to just one IP number, 82.201.57.4.