korrespondanceskolen.dk

Records from scan: 2026-10-11 11:29:34 · 3247ms total · last checked 2026-10-18 19:02 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

korrespondanceskolen.dk is a .dk domain served by 2 nameservers (cory.ns.cloudflare.com, piper.ns.cloudflare.com). It was registered on 30 August 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.111 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx03.adventist.dk. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
cory.ns.cloudflare.com	108.162.193.93 172.64.33.93 173.245.59.93 2606:4700:58::adf5:3b5d 2803:f800:50::6ca2:c15d 2a06:98c1:50::ac40:215d	cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
piper.ns.cloudflare.com	108.162.194.35 162.159.38.35 172.64.34.35 2606:4700:50::a29f:2623 2803:f800:50::6ca2:c223 2a06:98c1:50::ac40:2223	piper.ns.cloudflare.com piper.ns.cloudflare.com piper.ns.cloudflare.com piper.ns.cloudflare.com piper.ns.cloudflare.com piper.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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.48.111	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.124	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 45ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx03.adventist.dk	87.116.21.57	mx03.adventist.dk	AS31027 GlobalConnect A/S

🔷 AAAA Records (IPv6)#

2 records 46ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:306f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:b97c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 45ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.48.111,172.67.185.124 ech=AEX+DQBBrQAgACA/oX4W7CvhnODzYrX1ljgwM4YeEJLiqvbphCdy0QwMRwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:306f,2606:4700:3035::ac43:b97c

📝 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#

checked 2026-10-11 11:29:34

www	104.21.48.111 172.67.185.124 2606:4700:3035::6815:306f 2606:4700:3035::ac43:b97c (AS13335) (address records, no CNAME)
www vs bare domain	Same network korrespondanceskolen.dk: 104.21.48.111 172.67.185.124 2606:4700:3035::6815:306f 2606:4700:3035::ac43:b97c (AS13335) www.korrespondanceskolen.dk: 104.21.48.111 172.67.185.124 2606:4700:3035::6815:306f 2606:4700:3035::ac43:b97c (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

117ms

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

🏷️ SOA#

33ms

Field	Value
Serial	2417120097
Primary NS (MNAME)	cory.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 20:34:41

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-08-30
Expires	2027-09-30 (346d)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

43ms

45ms

AAAA

46ms

TXT

164ms

CAA

40ms

HTTPS

45ms

TLSA

75ms

SOA

33ms

MTA-STS

52ms

DNSSEC

117ms

SRV

51ms

Total

3247ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 11:29:34 shown	3247ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 23:51:21	506ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 18:32:54	1877ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-12 05:54:03	9361ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 07:21:20	1409ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 16:56:47	882ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 15:37:38	1057ms	2 NS 2 A 1 MX	🔓 Insecure