klassenskriver.dk

📜 Historical scan 2026-09-13 21:12:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

klassenskriver.dk is a .dk domain served by 2 nameservers (jobs.ns.cloudflare.com, liv.ns.cloudflare.com). It was registered on 2 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.48.187 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, 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 45ms

Nameserver	IP addresses	PTR	ASN / ISP
jobs.ns.cloudflare.com	108.162.193.183 172.64.33.183 173.245.59.183 2606:4700:58::adf5:3bb7 2803:f800:50::6ca2:c1b7 2a06:98c1:50::ac40:21b7	jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com jobs.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
liv.ns.cloudflare.com	108.162.192.188 172.64.32.188 173.245.58.188 2606:4700:50::adf5:3abc 2803:f800:50::6ca2:c0bc 2a06:98c1:50::ac40:20bc	liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.ns.cloudflare.com liv.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 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.48.187	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.187.196	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 50ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:bbc4	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:30bb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 73ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.48.187,172.67.187.196 ech=AEX+DQBBbgAgACBNRmbzoHxfE5zAKrLj0P2qnrANpJg7GhzXedk1fH6QHAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:bbc4,2606:4700:3036::6815:30bb

📝 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 13:42:17

www	104.21.48.187 172.67.187.196 2606:4700:3033::ac43:bbc4 2606:4700:3036::6815:30bb (AS13335) (address records, no CNAME)
www vs bare domain	Same network klassenskriver.dk: 104.21.48.187 172.67.187.196 2606:4700:3033::ac43:bbc4 2606:4700:3036::6815:30bb (AS13335) www.klassenskriver.dk: 104.21.48.187 172.67.187.196 2606:4700:3033::ac43:bbc4 2606:4700:3036::6815:30bb (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.klassenskriver.dk	jP_DHSZDrMO3DjF-EN2ELwzK_X5OQyd9C24C6OIAfi8
TXT	_acme-challenge.klassenskriver.dk	riKd7Wq-oM-AYj4Urk7MqFZaH4uFyKD230HRdiN4D80

🔗 TLSA / DANE#

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

🔐 DNSSEC#

120ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414789242
Primary NS (MNAME)	jobs.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 07:34:46

Field	Value
Registrar	ONE.COM A/S
Registered	2024-10-02
Expires	2027-10-01 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

45ms

44ms

41ms

AAAA

50ms

TXT

232ms

CAA

38ms

HTTPS

73ms

TLSA

68ms

SOA

0ms

MTA-STS

93ms

DNSSEC

120ms

SRV

92ms

Total

1419ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 13:42:17	933ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-04 07:30:36	500ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 07:21:06	611ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-29 16:04:43	616ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-27 20:51:28	2393ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-17 06:41:07	1390ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-13 21:12:15 shown	1419ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-05 19:25:42	1003ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-06 11:41:36	972ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-16 18:50:35	16787ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-27 13:01:01	798ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 14:45:09	1065ms	2 NS 2 A 0 MX	🔓 Insecure