grundderk.dk

Records from scan: 2026-10-04 09:21:22 · 431ms total · last checked 2026-10-27 21:30 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

grundderk.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 2 May 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 52.166.178.208 is hosted by Microsoft Corporation (AS8075) in The Netherlands. 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#

3 records 58ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.166.178.208	600s	—	AS8075	Microsoft Corporation	52.160.0.0/11	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-11 00:14:13

www CNAME	grundderk-app.azurewebsites.net (all on azurewebsites.net) ⚠ Dangling: the CNAME target does not exist. If that name can be claimed (an unregistered domain, or a free name on a hosting platform), whoever claims it controls www.grundderk.dk
www vs bare domain	www does not resolve grundderk.dk: 52.166.178.208 (AS8075) www.grundderk.dk: no address (all like this)
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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

91ms

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

🏷️ SOA#

41ms

Field	Value
Serial	2026100300
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 10:01:26

Field	Value
Registrar	Simply.com A/S
Registered	2026-05-02
Expires	2027-05-01 (185d)

📋 WHOIS#

⏱️ Lookup Timing#

58ms

41ms

39ms

AAAA

59ms

TXT

162ms

CAA

82ms

HTTPS

51ms

TLSA

59ms

SOA

41ms

MTA-STS

75ms

DNSSEC

91ms

SRV

68ms

Total

431ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-04 09:21:22 shown	431ms	3 NS 1 A 0 MX	🔒 Secure
2026-10-03 09:19:20	425ms	3 NS 1 A 0 MX	🔒 Secure
2026-10-01 04:11:19	362ms	3 NS 1 A 0 MX	🔒 Secure
2026-08-25 15:40:59	470ms	3 NS 1 A 0 MX	🔒 Secure
2026-07-02 11:41:30	606ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-26 20:28:40	1459ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-24 02:25:42	544ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-17 09:36:53	2417ms	3 NS 1 A 0 MX	🔒 Secure