viborghojskole.dk

📜 Historical scan 2026-08-21 23:45:46 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

viborghojskole.dk is a .dk domain served by 2 nameservers (bella.ns.cloudflare.com, mark.ns.cloudflare.com). It was registered on 27 April 2016 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.17.137 is hosted by Cloudflare, Inc. (AS13335). The zone is DNSSEC-signed and validates, has no 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 84ms

Nameserver	IP addresses	PTR	ASN / ISP
bella.ns.cloudflare.com	108.162.192.74 172.64.32.74 173.245.58.74 2606:4700:50::adf5:3a4a 2803:f800:50::6ca2:c04a 2a06:98c1:50::ac40:204a	bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com bella.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mark.ns.cloudflare.com	108.162.193.130 172.64.33.130 173.245.59.130 2606:4700:58::adf5:3b82 2803:f800:50::6ca2:c182 2a06:98c1:50::ac40:2182	mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com mark.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 83ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.17.137	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.176.206	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 104ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:b0ce	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:1189	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 102ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.17.137,172.67.176.206 ech=AEX+DQBBZAAgACDvuLFh8nj8bycdoLV8Rnvb2dhflxSdZrAwywR/kKzYMwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:b0ce,2606:4700:3037::6815:1189

📝 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#

latest probe, not this scan · checked 2026-10-09 12:19:42

www	104.21.17.137 172.67.176.206 2606:4700:3033::ac43:b0ce 2606:4700:3037::6815:1189 (AS13335) (address records, no CNAME)
www vs bare domain	Same network viborghojskole.dk: 104.21.17.137 172.67.176.206 2606:4700:3033::ac43:b0ce 2606:4700:3037::6815:1189 (AS13335) www.viborghojskole.dk: 104.21.17.137 172.67.176.206 2606:4700:3033::ac43:b0ce 2606:4700:3037::6815:1189 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
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#

182ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2412804919
Primary NS (MNAME)	bella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 12:39:25

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2016-04-27
Expires	2027-04-30 (185d)

📋 WHOIS#

⏱️ Lookup Timing#

84ms

83ms

72ms

AAAA

104ms

TXT

279ms

CAA

72ms

HTTPS

102ms

TLSA

71ms

SOA

0ms

MTA-STS

76ms

DNSSEC

182ms

SRV

120ms

Total

1321ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 12:19:42	1654ms	2 NS 2 A 0 MX	🔒 Secure
2026-10-01 06:32:41	544ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-18 09:56:32	660ms	2 NS 2 A 0 MX	🔒 Secure
2026-09-15 12:57:36	1582ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-27 14:13:07	630ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-27 02:54:01	2509ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-21 23:45:46 shown	1321ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-11 01:22:37	2855ms	2 NS 2 A 0 MX	🔒 Secure
2026-08-03 14:40:12	1373ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-20 14:35:30	1216ms	2 NS 2 A 0 MX	🔒 Secure
2026-07-04 21:43:06	1734ms	2 NS 2 A 0 MX	🔒 Secure
2026-06-17 14:34:19	1807ms	2 NS 2 A 0 MX	🔒 Secure