a4uddannelse.dk

📜 Historical scan 2026-06-16 12:42:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

a4uddannelse.dk is a .dk domain served by 2 nameservers (dave.ns.cloudflare.com, marge.ns.cloudflare.com). It was registered on 31 May 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.114.96.1 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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#

2 records 65ms

Nameserver	IP addresses	PTR	ASN / ISP
dave.ns.cloudflare.com	—	—	—
marge.ns.cloudflare.com	—	—	—

🌍 A Records#

2 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	—	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	—	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 59ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 55ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.18.236,172.67.183.229 ech=AEX+DQBBzAAgACCRSl2GarTD7edzme/SRSjBGfCZcUyEhedgk/e1csdNQwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:b7e5,2606:4700:3035::6815:12ec

📝 TXT Records#

1 records 124ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (a4uddannelse.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.a4uddannelse.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-10 12:16:47

www	104.21.18.236 172.67.183.229 2606:4700:3031::ac43:b7e5 2606:4700:3034::6815:12ec (AS13335) (address records, no CNAME)
www vs bare domain	Same network a4uddannelse.dk: 104.21.18.236 172.67.183.229 2606:4700:3031::ac43:b7e5 2606:4700:3034::6815:12ec (AS13335) www.a4uddannelse.dk: 104.21.18.236 172.67.183.229 2606:4700:3031::ac43:b7e5 2606:4700:3034::6815:12ec (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

141ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

61ms

Field	Value
Serial	2404501403
Primary NS (MNAME)	dave.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 07:57:09

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-05-31
Expires	2027-05-31 (226d)

📋 WHOIS#

⏱️ Lookup Timing#

65ms

53ms

49ms

AAAA

59ms

TXT

124ms

CAA

48ms

HTTPS

55ms

TLSA

43ms

SOA

61ms

MTA-STS

38ms

DNSSEC

141ms

SRV

0ms

Total

447ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 07:38:26	588ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 07:15:31	444ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-29 23:33:07	483ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 17:21:18	2424ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 22:49:14	609ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 15:05:06	521ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 06:36:33	2832ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-31 03:49:11	762ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-30 14:52:12	1132ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 09:44:18	5554ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-24 01:39:01	1040ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 14:13:43	1986ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 12:42:21 shown	447ms	2 NS 2 A 0 MX	🔓 Insecure