kortnu.dk

Records from scan: 2026-09-30 16:38:53 · 769ms total · last checked 2026-10-22 23:45 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

kortnu.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 April 2022 (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 smtp.google.com. The zone is DNSSEC-signed and validates, has no 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#

2 records 35ms

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#

3 records 33ms

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
198.49.23.144	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 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	108.177.14.26 108.177.14.27 209.85.233.27 2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1a 2a00:1450:4010:c0e::1a 2a00:1450:4010:c0e::1a 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b 74.125.131.26 74.125.131.27	lt-in-f26.1e100.net lt-in-f27.1e100.net lr-in-f27.1e100.net lr-in-x1a.1e100.net lr-in-f26.1e100.net lu-in-x1a.1e100.net lu-in-f26.1e100.net lt-in-x1a.1e100.net lt-in-f26.1e100.net lt-in-f27.1e100.net lt-in-x1b.1e100.net lu-in-f26.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 136ms

TXT Record
google-site-verification=oPXQ_6vh9RlT2tFL3UOpHrVlWI0z-ABrQh1Hxq-K5Tg

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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#

checked 2026-10-08 21:33:58

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 kortnu.dk: 198.185.159.144 198.49.23.144 198.49.23.145 (AS53831) www.kortnu.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#

1 found

Selector	CNAME	Key
google	—	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.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms

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

🏷️ SOA#

26ms

Field	Value
Serial	2026092901
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 2026-09-30 17:02:05

Field	Value
Registrar	ONE.COM A/S
Registered	2022-04-07
Expires	2027-04-06 (165d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

33ms

40ms

AAAA

39ms

TXT

136ms

CAA

25ms

HTTPS

38ms

TLSA

90ms

SOA

26ms

MTA-STS

58ms

DNSSEC

120ms

SRV

46ms

Total

769ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 16:38:53 shown	769ms	2 NS 3 A 1 MX	🔒 Secure
2026-09-23 15:03:39	676ms	2 NS 3 A 1 MX	🔒 Secure
2026-09-04 03:04:59	696ms	2 NS 3 A 1 MX	🔒 Secure
2026-08-30 01:45:58	2168ms	2 NS 3 A 1 MX	🔒 Secure
2026-07-31 04:02:51	8987ms	2 NS 3 A 1 MX	🔒 Secure
2026-06-29 17:38:27	983ms	2 NS 3 A 1 MX	🔒 Secure
2026-06-26 01:38:15	633ms	2 NS 3 A 1 MX	🔒 Secure
2026-06-25 01:49:32	639ms	2 NS 3 A 1 MX	🔒 Secure
2026-06-17 23:35:54	698ms	2 NS 3 A 1 MX	🔒 Secure