klassebogen.dk DNS records

🖥️ Nameservers2 records 43ms

Nameserver	IP addresses	PTR	ASN / ISP
aliza.ns.cloudflare.com	108.162.194.55 162.159.38.55 172.64.34.55 2606:4700:50::a29f:2637 2803:f800:50::6ca2:c237 2a06:98c1:50::ac40:2237	aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com aliza.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
marty.ns.cloudflare.com	108.162.193.204 172.64.33.204 173.245.59.204 2606:4700:58::adf5:3bcc 2803:f800:50::6ca2:c1cc 2a06:98c1:50::ac40:21cc	marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com marty.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 51ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.11.88	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.165.177	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	work-mx.app.hey.com	64.202.125.68	work-mx.app.hey.com	AS25657 Basecamp, LLC

🔷 AAAA Records (IPv6)2 records 58ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:b58	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:a5b1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 62ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.11.88,172.67.165.177 ech=AEX+DQBBRgAgACDgaNOvAMvElhFmdVdE2XGFNVk0aUo60AWhRKS1DACgUAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:b58,2606:4700:3036::ac43:a5b1

📝 TXT Records2 records 238ms

TXT Record
hey-verification:PpwMpB9LjxsoiufokJEYrtY6
v=spf1 include:_spf.hey.com ~all

✉️ SPF

Policy	Record (klassebogen.dk)
~all (soft fail)	v=spf1 include:_spf.hey.com ~all

📨 DMARC

Policy	Record (_dmarc.klassebogen.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC9102ms

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

🏷️ SOA0ms

Field	Value
Serial	2412124002
Primary NS (MNAME)	aliza.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

43ms

A

51ms

MX

56ms

AAAA

58ms

TXT

238ms

CAA

52ms

HTTPS

62ms

TLSA

129ms

SOA

0ms

MTA-STS

91ms

DNSSEC

9102ms

SRV

92ms

Total

9776ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 20:55:29	9776ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-14 18:02:30	4938ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-21 05:49:16	1113ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-18 00:16:06	1860ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-01 19:33:00	1397ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-22 00:41:38	522ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 12:57:42	1021ms	2 NS 2 A 1 MX	🔒 Secure	View