koert.dk

📜 Historical scan 2026-09-23 15:17:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

koert.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 16 September 2026 (WHOIS) and first appeared in the .dk zone on 17 September 2026. Its website address 138.201.174.3 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by mailserver.purelymail.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 41ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
138.201.174.3	3600s	static.3.174.201.138.clients.your-server.de	AS24940	Hetzner Online GmbH	138.201.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mailserver.purelymail.com	18.204.123.63	ec2-18-204-123-63.compute-1.amazonaws.com	AS14618 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔶 Autoconfig	autoconfig.purelymail.com → 18.204.123.63

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 231ms

TXT Record
138.201.174.3
purelymail_ownership_proof=155c1bd4c1280074778fe99ead8acc31f90707cdcd4186ceb99a7684d0dba853486de8a83129d5c8706be46f42e3ba8c21b618be4ae92fc14d800dedeb7e01b2
v=spf1 include:_spf.purelymail.com ~all

✉️ SPF#

Policy	Record (koert.dk)
~all (soft fail)	v=spf1 include:_spf.purelymail.com ~all

📨 DMARC#

Policy	Record (_dmarc.koert.dk)
p=reject	v=DMARC1; p=reject; ruf=mailto:dmarc@purelymail.com

📬 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 2026-10-12 20:10:23

www	138.201.174.3 (AS24940) (address records, no CNAME)
www vs bare domain	Same network koert.dk: 138.201.174.3 (AS24940) www.koert.dk: 138.201.174.3 (AS24940)
Wildcard	No
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

🔎 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#

113ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026092005
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 2026-10-04 09:40:09

Field	Value
Registrar	Simply.com A/S
Registered	2026-09-16
Expires	2027-09-15 (327d)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

37ms

45ms

AAAA

34ms

TXT

231ms

CAA

32ms

HTTPS

40ms

TLSA

106ms

SOA

0ms

MTA-STS

48ms

DNSSEC

113ms

SRV

178ms

Total

712ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 20:10:23	659ms	3 NS 1 A 1 MX	🔒 Secure
2026-10-04 09:33:31	1352ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-28 07:48:25	657ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-23 15:17:56 shown	712ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-17 09:06:29	694ms	3 NS 1 A 0 MX	🔒 Secure