sonderborgtand.dk

Records from scan: 2026-09-30 15:24:47 · 536ms total · last checked 2026-10-16 07:07 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sonderborgtand.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 17 October 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.251 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mail.sonderborgtand.dk. 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 23ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.251	3600s	linux8.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mail.sonderborgtand.dk	37.128.222.206	mail.sonderborgtand.dk	AS39642 Sinal A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	37.128.222.206
🔶 Autoconfig	185.21.40.251

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 152ms

TXT Record
google-site-verification=g8Q98rF6QRbaTGmC3dGqBSZhQ_AVQ5S92qZ274yWPS0
v=spf1 a ip4:37.128.222.206 a:mail.sonderborgtand.dk -all

✉️ SPF#

Policy	Record (sonderborgtand.dk)
-all (hard fail)	v=spf1 a ip4:37.128.222.206 a:mail.sonderborgtand.dk -all

📨 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 2026-10-12 01:22:12

www	185.21.40.251 (AS48854) (address records, no CNAME)
www vs bare domain	Same network sonderborgtand.dk: 185.21.40.251 (AS48854) www.sonderborgtand.dk: 185.21.40.251 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

55ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2026060901
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-09 13:27:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-10-17
Expires	2026-10-31 (14d)

📋 WHOIS#

⏱️ Lookup Timing#

23ms

22ms

37ms

AAAA

26ms

TXT

152ms

CAA

27ms

HTTPS

36ms

TLSA

66ms

SOA

32ms

MTA-STS

43ms

DNSSEC

55ms

SRV

47ms

Total

536ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 15:24:47 shown	536ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 05:49:05	479ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 14:45:27	873ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-10 00:06:42	687ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 08:36:26	572ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:05:53	1932ms	2 NS 1 A 1 MX	🔒 Secure