kortnu.dk

📜 Historical scan 2026-08-30 01:45:58  ·  ← Latest scan
⬇ 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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records   85ms
NameserverIP addressesPTRASN / 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   140ms
IPTTLPTRASNISP / OrgCIDRCountryCity
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   167ms
PriorityTTLMail ServerIP addressesPTRASN
1 3600s smtp.google.com 142.251.127.26
142.251.127.27
2a00:1450:4001:c21::1a
2a00:1450:4001:c21::1b		 lcfrai-in-f26.1e100.net
lcfrai-in-f27.1e100.net
lcfrai-in-f26.1e100.net
lcfrai-in-f27.1e100.net		 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   642ms
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#

latest probe, not this scan · checked 2026-10-08 21:33:58
www CNAMEext-cust.squarespace.com (all on squarespace.com)
www vs bare domainSame network
WildcardNo
Denial of existenceNSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found
SelectorCNAMEKey
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#

591ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

0ms
FieldValue
Serial2026082901
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-09-30 17:02:05
FieldValue
RegistrarONE.COM A/S
Registered2022-04-07
Expires2027-04-06 (164d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
85ms
A
140ms
MX
167ms
AAAA
154ms
TXT
642ms
CAA
399ms
HTTPS
401ms
TLSA
310ms
SOA
0ms
MTA-STS
466ms
DNSSEC
591ms
SRV
441ms
Total
2168ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-09-30 16:38:53 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 shown 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
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