guldborgung.dk

Records from scan: 2026-10-09 10:01:56 · 797ms total · last checked 2026-10-16 06:54 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

guldborgung.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.55 is hosted by team.blue Denmark A/S (AS48854) in Denmark. The zone is DNSSEC-signed and validates, publishes a 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 55ms

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 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.55	3600s	vm1251.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	guldborgung.dk → 185.21.40.55
🔶 Autoconfig	guldborgung.dk → 185.21.40.55

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 145ms

TXT Record
v=spf1 include:spf.curanet.dk -all

✉️ SPF#

Policy	Record (guldborgung.dk)
-all (hard fail)	v=spf1 include:spf.curanet.dk -all

📨 DMARC#

Policy	Record (_dmarc.guldborgung.dk)
p=reject	v=DMARC1; p=reject; ri=86400

📬 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 2026-10-09 10:01:56

www CNAME	guldborgung.dk (all on guldborgung.dk) → 185.21.40.55 (AS48854)
www vs bare domain	Same network guldborgung.dk: 185.21.40.55 (AS48854) www.guldborgung.dk: 185.21.40.55 (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: 3/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.guldborgung.dk	guldborgung.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

119ms

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

🏷️ SOA#

36ms

Field	Value
Serial	2025111301
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

55ms

46ms

49ms

AAAA

47ms

TXT

145ms

CAA

58ms

HTTPS

39ms

TLSA

48ms

SOA

36ms

MTA-STS

67ms

DNSSEC

119ms

SRV

58ms

Total

797ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:01:56 shown	797ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-26 04:17:46	510ms	2 NS 1 A 0 MX	🔒 Secure
2026-09-01 21:59:53	593ms	2 NS 1 A 0 MX	🔒 Secure
2026-07-02 13:26:25	652ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-26 18:14:09	655ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-25 23:57:23	557ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-17 10:18:17	2025ms	2 NS 1 A 0 MX	🔒 Secure