blågymnasium.dk DNS records

🖥️ Nameservers2 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
darwin.ns.cloudflare.com	108.162.193.151 172.64.33.151 173.245.59.151 2606:4700:58::adf5:3b97 2803:f800:50::6ca2:c197 2a06:98c1:50::ac40:2197	darwin.ns.cloudflare.com darwin.ns.cloudflare.com darwin.ns.cloudflare.com darwin.ns.cloudflare.com darwin.ns.cloudflare.com darwin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
fiona.ns.cloudflare.com	108.162.192.157 172.64.32.157 173.245.58.157 2606:4700:50::adf5:3a9d 2803:f800:50::6ca2:c09d 2a06:98c1:50::ac40:209d	fiona.ns.cloudflare.com fiona.ns.cloudflare.com fiona.ns.cloudflare.com fiona.ns.cloudflare.com fiona.ns.cloudflare.com fiona.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.11.92	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.165.181	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	185.21.41.103
🔶 Autoconfig	185.21.41.103

🔷 AAAA Records (IPv6)2 records 66ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:b5c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:a5b5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 62ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.21.11.92,172.67.165.181 ech=AEX+DQBBEAAgACA7If8rNglk9KVKZETb+2qIlzSUhPBSk880QdeYlfeJcwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:b5c,2606:4700:3031::ac43:a5b5

📝 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.blågymnasium.dk	1Loh5LFe74KZYi54-PO7dLhU6UntoXoOMWy2LXHtBQU
TXT	_acme-challenge.blågymnasium.dk	OrF6Nvh7tx2k17i_Axzyio0teAhMqyUzoBAJYH4435c

🔗 TLSA / DANE

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

🔐 DNSSEC141ms

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

🏷️ SOA0ms

Field	Value
Serial	2412951205
Primary NS (MNAME)	darwin.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

63ms

A

38ms

MX

50ms

AAAA

66ms

TXT

202ms

CAA

72ms

HTTPS

62ms

TLSA

79ms

SOA

0ms

MTA-STS

107ms

DNSSEC

141ms

SRV

77ms

Total

937ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 00:24:51	937ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-24 14:05:57	2945ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-23 04:56:28	3328ms	2 NS 2 A 0 MX	❓ Unknown	View
2026-08-21 04:20:47	5253ms	2 NS 2 A 0 MX	❓ Unknown	View
2026-07-18 11:40:18	1430ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-20 14:25:44	457ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-06-16 15:05:46	384ms	2 NS 2 A 0 MX	🔒 Secure	View