optimeringsguiden.dk

📜 Historical scan 2026-10-06 00:37:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optimeringsguiden.dk is a .dk domain served by 2 nameservers (josh.ns.cloudflare.com, lisa.ns.cloudflare.com). It was registered on 24 August 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.38.74 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 513ms

Nameserver	IP addresses	PTR	ASN / ISP
josh.ns.cloudflare.com	108.162.193.126 172.64.33.126 173.245.59.126 2606:4700:58::adf5:3b7e 2803:f800:50::6ca2:c17e 2a06:98c1:50::ac40:217e	josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com josh.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lisa.ns.cloudflare.com	108.162.192.131 172.64.32.131 173.245.58.131 2606:4700:50::adf5:3a83 2803:f800:50::6ca2:c083 2a06:98c1:50::ac40:2083	lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.ns.cloudflare.com lisa.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 451ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.38.74	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.220.19	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	94.231.107.250
🔶 Autoconfig	94.231.107.250

🔷 AAAA Records (IPv6)#

2 records 511ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:264a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:dc13	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 450ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.38.74,172.67.220.19 ech=AEX+DQBBHwAgACB+MkwD+NmauSe6vhs63AhQMeGmgNqu1mzL5vYZvT0uRQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:264a,2606:4700:3036::ac43:dc13

📝 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 2026-10-21 22:57:24

www	104.21.38.74 172.67.220.19 2606:4700:3031::6815:264a 2606:4700:3036::ac43:dc13 (AS13335) (address records, no CNAME)
www vs bare domain	Same network optimeringsguiden.dk: 104.21.38.74 172.67.220.19 2606:4700:3031::6815:264a 2606:4700:3036::ac43:dc13 (AS13335) www.optimeringsguiden.dk: 104.21.38.74 172.67.220.19 2606:4700:3031::6815:264a 2606:4700:3036::ac43:dc13 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔗 TLSA / DANE#

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

🔐 DNSSEC#

654ms

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

🏷️ SOA#

203ms

Field	Value
Serial	2416674538
Primary NS (MNAME)	josh.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 01:00:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-08-24
Expires	2030-08-31 (1406d)

📋 WHOIS#

⏱️ Lookup Timing#

513ms

451ms

328ms

AAAA

511ms

TXT

1009ms

CAA

117ms

HTTPS

450ms

TLSA

445ms

SOA

203ms

MTA-STS

542ms

DNSSEC

654ms

SRV

582ms

Total

2916ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 22:57:24	493ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-16 09:46:21	437ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-06 00:37:17 shown	2916ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-29 23:35:14	477ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-24 12:37:01	2411ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-01 05:40:13	1172ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 15:49:23	910ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-16 14:32:01	3315ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 10:01:34	1047ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-26 11:51:50	795ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 17:49:37	2714ms	2 NS 2 A 0 MX	🔓 Insecure