dk-dfu.dk

📜 Historical scan 2026-07-02 00:31:04 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dk-dfu.dk is a .dk domain served by 2 nameservers (grace.ns.cloudflare.com, stan.ns.cloudflare.com). It was registered on 27 November 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.31.226 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 283ms

Nameserver	IP addresses	PTR	ASN / ISP
grace.ns.cloudflare.com	108.162.192.159 172.64.32.159 173.245.58.159 2606:4700:50::adf5:3a9f 2803:f800:50::6ca2:c09f 2a06:98c1:50::ac40:209f	grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com grace.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
stan.ns.cloudflare.com	108.162.193.235 172.64.33.235 173.245.59.235 2606:4700:58::adf5:3beb 2803:f800:50::6ca2:c1eb 2a06:98c1:50::ac40:21eb	stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.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 315ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.31.226	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.180.64	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 148ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:b440	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:1fe2	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 337ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.31.226,172.67.180.64 ech=AEX+DQBBbQAgACDRh8EBBYsg5gKR/MjDbn7NihoT9MYyzy/BWffmjeQMZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:b440,2606:4700:3037::6815:1fe2

📝 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 2026-10-15 17:53:51

www	104.21.31.226 172.67.180.64 2606:4700:3032::ac43:b440 2606:4700:3037::6815:1fe2 (AS13335) (address records, no CNAME)
www vs bare domain	Same network dk-dfu.dk: 104.21.31.226 172.67.180.64 2606:4700:3032::ac43:b440 2606:4700:3037::6815:1fe2 (AS13335) www.dk-dfu.dk: 104.21.31.226 172.67.180.64 2606:4700:3032::ac43:b440 2606:4700:3037::6815:1fe2 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

520ms

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	2408343111
Primary NS (MNAME)	grace.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-14 18:03:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-11-27
Expires	2026-11-26 (37d)

📋 WHOIS#

⏱️ Lookup Timing#

283ms

315ms

279ms

AAAA

148ms

TXT

666ms

CAA

314ms

HTTPS

337ms

TLSA

244ms

SOA

0ms

MTA-STS

381ms

DNSSEC

520ms

SRV

372ms

Total

4023ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 17:53:51	849ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-01 00:03:41	592ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-29 22:22:43	413ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-25 17:50:12	535ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-02 05:24:37	1118ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-29 04:55:07	1173ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-27 01:02:25	673ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-17 08:33:21	16822ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-02 00:31:04 shown	4023ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 03:42:26	329ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 03:40:52	383ms	2 NS 2 A 0 MX	🔓 Insecure