optisk-kabel.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
amber.ns.cloudflare.com	108.162.192.64 172.64.32.64 173.245.58.64 2606:4700:50::adf5:3a40 2803:f800:50::6ca2:c040 2a06:98c1:50::ac40:2040	amber.ns.cloudflare.com amber.ns.cloudflare.com amber.ns.cloudflare.com amber.ns.cloudflare.com amber.ns.cloudflare.com amber.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jonah.ns.cloudflare.com	108.162.193.186 172.64.33.186 173.245.59.186 2606:4700:58::adf5:3bba 2803:f800:50::6ca2:c1ba 2a06:98c1:50::ac40:21ba	jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com jonah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.55.166	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.85	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:9555	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:37a6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 45ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.55.166,172.67.149.85 ech=AEX+DQBBawAgACBBwLQ2IQI5kxHqyXMxsjjWJa66o5bp5FysbYIpucVDBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9555,2606:4700:3034::6815:37a6

📝 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

🔗 TLSA / DANE

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

🔐 DNSSEC78ms

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	2411588024
Primary NS (MNAME)	amber.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

50ms

A

45ms

MX

41ms

AAAA

47ms

TXT

196ms

CAA

47ms

HTTPS

45ms

TLSA

58ms

SOA

0ms

MTA-STS

50ms

DNSSEC

78ms

SRV

64ms

Total

544ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 05:23:48	544ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-09 22:09:36	1473ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-18 02:02:52	842ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-26 22:16:46	1748ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-23 19:22:58	1157ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 02:14:03	910ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 06:09:32	884ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-20 15:52:50	1147ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 12:07:41	789ms	2 NS 2 A 0 MX	🔓 Insecure	View