sejlund.dk

📜 Historical scan 2026-09-16 15:17:08 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejlund.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 3 July 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.28 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by sejlund-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.28	3600s	webcluster1.webpod12-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sejlund-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::e 2a01:111:f403:ca38::8 2a01:111:f403:ca48::12 52.101.103.140 52.101.185.21 52.101.73.155 52.101.91.153	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-wa4pr04cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

1 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10a:e7:7764:12e1:f541	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 173ms

TXT Record
MS=ms71786200
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (sejlund.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 15:03:29

www	46.30.213.28 2a02:2350:5:10a:e7:7764:12e1:f541 (AS51468) (address records, no CNAME)
www vs bare domain	Same network sejlund.dk: 46.30.213.28 2a02:2350:5:10a:e7:7764:12e1:f541 (AS51468) www.sejlund.dk: 46.30.213.28 2a02:2350:5:10a:e7:7764:12e1:f541 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

134ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2026091502
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-15 09:36:56

Field	Value
Registrar	ONE.COM A/S
Registered	1997-07-03
Expires	2027-09-30 (338d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
udgivdinbognu.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

39ms

45ms

AAAA

42ms

TXT

173ms

CAA

48ms

HTTPS

59ms

TLSA

438ms

SOA

0ms

MTA-STS

61ms

DNSSEC

134ms

SRV

57ms

Total

1215ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 15:03:29	1640ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-14 22:37:33	1047ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:48:35	557ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 15:31:57	1833ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-16 15:17:08 shown	1215ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-08 07:46:20	1352ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 14:49:15	1071ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-22 04:35:20	6993ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-21 04:25:04	8484ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 02:34:47	778ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 22:53:16	1183ms	2 NS 1 A 1 MX	🔒 Secure