`ibfelt-siebert.dk`

DNSSEC	🔒 Signed (DS record present)
A	2a06:1301:4050:200:0:237:33:0^{🇫🇮 WEBDOCK-AS2a06:1301:4050::/48}
		PTR	`cphlex.dk`
A	217.78.237.33^{🇫🇮 WEBDOCK-AS217.78.237.0/24}
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	`dk.mx1.mailanyone.net` ⭐
		A	2a01:77c0:1619:4100:6fa6:1315:2bd2:51cd^{🇩🇰 Amazon2a01:77c0:1619::/48 EC2 Prefix}
			PTR	`mx11.electric.net`
		A	192.162.219.155^{🇮🇪 Amazon192.162.219.0/24 EC2 Prefix}
			PTR	`mx41.electric.net`
MX	`dk.mx2.mx25.net`⁽²⁰⁾
		A	192.162.219.49^{🇮🇪 Amazon192.162.219.0/24 EC2 Prefix}
			PTR	`mx41.electric.net`
MX	`dk.mx3.mailanyone.net`⁽³⁰⁾
		A	2a01:77c0:1619:4101:d99:c22:fb4d:290e^{🇩🇰 Amazon2a01:77c0:1619::/48 EC2 Prefix}
			PTR	`mx10.electric.net`
		A	192.162.219.255^{🇮🇪 Amazon192.162.219.0/24 EC2 Prefix}
			PTR	`mx41.electric.net`
MX	`dk.mx4.mx25.net`⁽⁴⁰⁾
		A	192.162.219.255^{🇮🇪 Amazon192.162.219.0/24 EC2 Prefix}
			PTR	`mx41.electric.net`
TXT	`MS=ms43717117`
TXT	`v=spf1 include:spf.protection.outlook.com include:spf.mailanyone.net -all`
SOA	`ns1.simply.com`hostmaster@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 1778726701localtime Thu May 14 04:45:01 2026gmtime Thu Ma...`
	SOA	`b.nic.dk`tech@punktum.dk serial=1778726701

Subdomains

mail.ibfelt-siebert.dk

Same first word

ibfelt-siebert.dk

DNS History

14 records (10 active, 4 former)

○NSns01.tdcwebmore.dk2015-06-03 → 2016-11-29 · 4 obs

● 2015-06-03 10:32:24
● 2016-11-29 14:47:20
○ 2026-02-26 18:20:22
○ 2026-05-14 03:11:12

○NSns02.tdcwebmore.dk2015-06-03 → 2016-11-29 · 4 obs

● 2015-06-03 10:32:24
● 2016-11-29 14:47:20
○ 2026-02-26 18:20:22
○ 2026-05-14 03:11:12

●NSns1.simply.com2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●NSns2.simply.com2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●NSns3.simply.com2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●NSns4.simply.com2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●MXdk.mx1.mailanyone.net2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●MXdk.mx2.mx25.net2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●MXdk.mx3.mailanyone.net2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●MXdk.mx4.mx25.net2026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

○MXibfeltsiebert-dk01e.mail.protection.outlook.com2015-06-03 → 2016-11-29 · 4 obs

● 2015-06-03 10:32:24
● 2016-11-29 14:47:20
○ 2026-02-26 18:20:22
○ 2026-05-14 03:11:12

○A193.88.99.1552015-06-03 → 2016-11-29 · 4 obs

● 2015-06-03 10:32:24
● 2016-11-29 14:47:20
○ 2026-02-26 18:20:22
○ 2026-05-14 03:11:12

●A217.78.237.332026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

●A2a06:1301:4050:200:0:237:33:02026-02-26 → 2026-05-14 · 3 obs

○ 2016-11-29 14:47:20
● 2026-02-26 18:20:22
● 2026-05-14 03:11:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	h.nic.dk, l.nic.dk, s.nic.dk, t.nic.dk...	-
ibfelt-siebert.dk	ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com	-

✅ Authoritative Response

Server:91.197.248.80

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: 1076ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`217.78.237.33`
AAAA	1	`2a06:1301:4050:200:0:237:33:0`
NS	4	`ns4.simply.com, ns3.simply.com...`
MX	4	`dk.mx4.mx25.net (pri: 40), dk.mx3.mailanyone.net (pri: 30)...`
TXT	2	`MS=ms43717117, v=spf1 include:spf.protection.outlook.co`
SOA	1	`ns1.simply.com hostmaster.simply.com`

Analysis

Hierarchy

The parent of mail.ibfelt-siebert.dk is ibfelt-siebert.dk.

IP Addresses

ibfelt-siebert.dk points to two IP numbers: 2a06:1301:4050:200:0:237:33:0 and 217.78.237.33.

Other host names, for instance cphlex.dk, share IP numbers with ibfelt-siebert.dk.

Name Servers

ibfelt-siebert.dk is delegated to four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.

ibfelt-siebert.dk at least partially shares name servers with other domains, for example secpoint.se, snusshop.eu, tagover.dk, tvil.dk and hsogbs.dk.

Host names with two IPs:

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:

ns3.simply.com points to 91.197.248.79

ns4.simply.com points to 91.197.248.80

Mail Servers

ibfelt-siebert.dk is served by four mail servers: dk.mx1.mailanyone.net, dk.mx3.mailanyone.net, dk.mx2.mx25.net and dk.mx4.mx25.net.

ibfelt-siebert.dk shares at least partially some mail servers with other domains, for instance glenfield.co.uk, tsjp.dk, ultraplast.dk, romabra.no and haugaardbraad.dk.