seasun.dk

Records from scan: 2026-10-07 07:27:01 · 2499ms total · last checked 2026-10-21 06:01 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

seasun.dk is a .dk domain served by 4 nameservers (ns1.nhl-data.dk, ns2.nhl-data.dk, ns3.nhl-data.dk and 1 more). It was registered on 24 March 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.185.159.144 is hosted by Squarespace, Inc. (AS53831) in United States. Mail is handled by seasun-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 78ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.nhl-data.dk	185.136.96.11 2a06:fb00:1::1:11	ns1.nhl-data.dk ns1.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
ns2.nhl-data.dk	185.136.97.11 2a06:fb00:1::2:11	ns2.nhl-data.dk ns2.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
ns3.nhl-data.dk	185.136.98.11 2a06:fb00:1::3:11	ns3.nhl-data.dk ns3.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
ns4.nhl-data.dk	185.136.99.11 2a06:fb00:1::4:11	ns4.nhl-data.dk ns4.nhl-data.dk	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd

🌍 A Records#

4 records 79ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.185.159.144	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	New York
198.185.159.145	3600s	—	AS53831	Squarespace, Inc.	198.185.159.0/24	🇺🇸 United States	—
198.49.23.144	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—
198.49.23.145	3600s	—	AS53831	Squarespace, Inc.	198.49.23.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 155ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	seasun-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::e 2a01:111:f403:ca09::20 2a01:111:f403:ca48::a 52.101.103.39 52.101.68.12 52.101.68.29 52.101.68.8	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.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 → 52.98.149.152

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

5 records 364ms

TXT Record
google-site-verification=god0JIBRqqAQiQQUEGB_s8V2xWrFqTA47eaHMUM7fCg
google-site-verification=Hrx9BpdCmhIgmxwlYXJTKQbBFxw_vciDQjxrPcAllyw
MS=ms28159001
ps4fggjh49mpqv3ndrhs9k0c5zysz64j
v=spf1 a mx include:spf.nhl-data.dk include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (seasun.dk)
-all (hard fail)	v=spf1 a mx include:spf.nhl-data.dk include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.seasun.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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#

checked 2026-10-12 12:36:43

www CNAME	ext-cust.squarespace.com (all on squarespace.com) → 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
www vs bare domain	Same network seasun.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831) www.seasun.dk: 198.185.159.144 198.185.159.145 198.49.23.144 198.49.23.145 (AS53831)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

3 found

Selector	CNAME	Key
s1	s1.domainkey.u21466165.wl166.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u21466165.wl166.sendgrid.net	RSA · ~2048 bit
selector1	selector1-seasun-dk._domainkey.seasundk.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

241ms

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

🏷️ SOA#

76ms

Field	Value
Serial	2026100602
Primary NS (MNAME)	ns1.nhl-data.dk
Responsible (RNAME)	hostmaster@nhl-data.dk
Refresh	10800s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-07 20:36:11

Field	Value
Registrar	NHL DATA ApS
Registered	1998-03-24
Expires	2027-04-30 (190d)

📋 WHOIS#

⏱️ Lookup Timing#

78ms

79ms

155ms

AAAA

102ms

TXT

364ms

CAA

85ms

HTTPS

87ms

TLSA

848ms

SOA

76ms

MTA-STS

150ms

DNSSEC

241ms

SRV

151ms

Total

2499ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 07:27:01 shown	2499ms	4 NS 4 A 1 MX	🔒 Secure
2026-09-17 20:21:06	6061ms	4 NS 4 A 1 MX	🔒 Secure
2026-08-27 15:02:22	919ms	4 NS 4 A 1 MX	🔒 Secure
2026-08-08 10:58:51	1709ms	4 NS 4 A 1 MX	🔒 Secure
2026-07-18 15:03:35	10617ms	4 NS 4 A 1 MX	🔒 Secure
2026-06-29 13:52:07	1037ms	4 NS 4 A 1 MX	🔒 Secure
2026-06-21 04:20:24	3035ms	4 NS 4 A 1 MX	🔒 Secure
2026-06-20 00:11:05	8260ms	4 NS 4 A 1 MX	🔒 Secure
2026-06-17 14:32:55	2685ms	4 NS 4 A 1 MX	🔒 Secure