haderslevungdomsskole.dk

Records from scan: 2026-10-07 18:03:49 · 461ms total · last checked 2026-10-16 11:16 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

haderslevungdomsskole.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 30 June 1998 (WHOIS) and 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 30ms

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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.55	300s	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	haderslevungdomsskole.dk → 185.21.40.55
🔶 Autoconfig	haderslevungdomsskole.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 127ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (haderslevungdomsskole.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.haderslevungdomsskole.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 2026-10-07 18:03:49

www CNAME	haderslevungdomsskole.dk (all on haderslevungdomsskole.dk) → 185.21.40.55 (AS48854)
www vs bare domain	Same network haderslevungdomsskole.dk: 185.21.40.55 (AS48854) www.haderslevungdomsskole.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: 0/10 · policy: -all

No problems found

🔏 ACME Challenge#

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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

54ms

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

🏷️ SOA#

40ms

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#

WHOIS fetched 2026-10-06 01:09:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1998-06-30
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

30ms

41ms

35ms

AAAA

39ms

TXT

127ms

CAA

25ms

HTTPS

40ms

TLSA

38ms

SOA

40ms

MTA-STS

44ms

DNSSEC

54ms

SRV

40ms

Total

461ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 18:03:49 shown	461ms	2 NS 1 A 0 MX	🔒 Secure
2026-08-28 04:55:45	614ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-28 21:14:44	583ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-17 10:48:41	650ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-17 10:44:27	471ms	2 NS 1 A 0 MX	🔒 Secure