krt.dk

📜 Historical scan 2026-09-10 18:11:32 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

krt.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 14 November 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 35.214.221.112 is hosted by Google Ireland Limited (AS43515) in The Netherlands. Mail is handled by krt-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 this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 45ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
35.214.221.112	3600s	112.221.214.35.bc.googleusercontent.com	AS43515	Google Ireland Limited	35.214.128.0/17	🇳🇱 The Netherlands	Groningen

📧 MX Records#

1 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	krt-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::c 2a01:111:f403:ca09::24 2a01:111:f403:ca09::28 52.101.103.39 52.101.68.39 52.101.73.153 52.101.91.162	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00300.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-matpr04cu00302.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 → 40.104.116.40
🔶 Autoconfig	35.214.221.112

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

4 records 175ms

TXT Record
apple-domain-verification=ZSQCG23YqsI4OC3P
mandrill_verify.Ts7YK1hoJAjqHdQDHdh9VA
MS=ms63299802
v=spf1 include:spf.protection.outlook.com include:spf.eu.signature365.net include:spf.mandrillapp.com -all

✉️ SPF#

Policy	Record (krt.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.eu.signature365.net include:spf.mandrillapp.com -all

📨 DMARC#

Policy	Record (_dmarc.krt.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_reports@kristianrytter.dk;

📬 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 2026-10-13 01:12:08

www	35.214.221.112 (AS15169) (address records, no CNAME)
www vs bare domain	Same network krt.dk: 35.214.221.112 (AS15169) www.krt.dk: 35.214.221.112 (AS15169)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-krt-dk._domainkey.kristianrytter.w-v1.dkim.mail.microsoft	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: 3/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

85ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026061601
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-03 06:26:38

Field	Value
Registrar	Simply.com A/S
Registered	2002-11-14
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

43ms

49ms

AAAA

40ms

TXT

175ms

CAA

59ms

HTTPS

47ms

TLSA

898ms

SOA

0ms

MTA-STS

70ms

DNSSEC

85ms

SRV

676ms

Total

1956ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:12:08	1386ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-03 06:09:10	1442ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-01 06:01:54	753ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-10 18:11:32 shown	1956ms	3 NS 1 A 1 MX	🔒 Secure
2026-08-28 04:46:28	1424ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-23 04:23:47	1134ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-19 23:34:49	2753ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:25:51	717ms	3 NS 1 A 1 MX	🔒 Secure