strukdir.dk

📜 Historical scan 2026-09-14 19:41:43 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

strukdir.dk is a .dk domain served by 2 nameservers (cullen.ns.cloudflare.com, irena.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.59.51 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 152ms

Nameserver	IP addresses	PTR	ASN / ISP
cullen.ns.cloudflare.com	108.162.195.91 162.159.44.91 172.64.35.91 2606:4700:58::a29f:2c5b 2803:f800:50::6ca2:c35b 2a06:98c1:50::ac40:235b	cullen.ns.cloudflare.com cullen.ns.cloudflare.com cullen.ns.cloudflare.com cullen.ns.cloudflare.com cullen.ns.cloudflare.com cullen.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
irena.ns.cloudflare.com	108.162.194.79 162.159.38.79 172.64.34.79 2606:4700:50::a29f:264f 2803:f800:50::6ca2:c24f 2a06:98c1:50::ac40:224f	irena.ns.cloudflare.com irena.ns.cloudflare.com irena.ns.cloudflare.com irena.ns.cloudflare.com irena.ns.cloudflare.com irena.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 122ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.59.51	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.214.142	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 131ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:d68e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:3b33	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 122ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.59.51,172.67.214.142 ech=AEX+DQBB9QAgACAxPMx5Mhou1a8yXRyl1PvuT1X4xpXRYhwwU92FqX9YPwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d68e,2606:4700:3035::6815:3b33

📝 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 02:14:29

www	104.21.59.51 172.67.214.142 2606:4700:3030::ac43:d68e 2606:4700:3035::6815:3b33 (AS13335) (address records, no CNAME)
www vs bare domain	Same network strukdir.dk: 188.114.96.1 188.114.97.1 2606:4700:3030::ac43:d68e 2606:4700:3035::6815:3b33 (AS13335) www.strukdir.dk: 104.21.59.51 172.67.214.142 2606:4700:3030::ac43:d68e 2606:4700:3035::6815:3b33 (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.strukdir.dk	FNW9pZEFmNejvHPqzyv85zTNwEk55SYPdCGkpBHZIpw
TXT	_acme-challenge.strukdir.dk	kPC4wc40vkeSD1CX5nScRyCGMu9uFqFzzUm9_WAEbhs

🔗 TLSA / DANE#

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

🔐 DNSSEC#

167ms

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	2414744437
Primary NS (MNAME)	cullen.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

152ms

122ms

102ms

AAAA

131ms

TXT

391ms

CAA

226ms

HTTPS

122ms

TLSA

569ms

SOA

0ms

MTA-STS

144ms

DNSSEC

167ms

SRV

233ms

Total

1900ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 02:14:29	889ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-17 12:17:40	698ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-14 19:41:43 shown	1900ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 14:19:27	9397ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-16 18:46:31	1081ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-27 20:09:53	767ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 03:12:33	394ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-19 22:57:57	2574ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 12:58:04	4678ms	2 NS 2 A 0 MX	⚠️ Bogus