tkudvikling.dk

📜 Historical scan 2026-10-01 20:32:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tkudvikling.dk is a .dk domain served by 2 nameservers (sofia.ns.cloudflare.com, zod.ns.cloudflare.com). It was registered on 23 September 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.20.12 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 54ms

Nameserver	IP addresses	PTR	ASN / ISP
sofia.ns.cloudflare.com	108.162.192.223 172.64.32.223 173.245.58.223 2606:4700:50::adf5:3adf 2803:f800:50::6ca2:c0df 2a06:98c1:50::ac40:20df	sofia.ns.cloudflare.com sofia.ns.cloudflare.com sofia.ns.cloudflare.com sofia.ns.cloudflare.com sofia.ns.cloudflare.com sofia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
zod.ns.cloudflare.com	108.162.193.250 172.64.33.250 173.245.59.250 2606:4700:58::adf5:3bfa 2803:f800:50::6ca2:c1fa 2a06:98c1:50::ac40:21fa	zod.ns.cloudflare.com zod.ns.cloudflare.com zod.ns.cloudflare.com zod.ns.cloudflare.com zod.ns.cloudflare.com zod.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 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.20.12	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.190.197	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	173.194.221.27 2a00:1450:4010:c1e::1a	lm-in-f27.1e100.net lb-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:140c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:bec5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 42ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.20.12,172.67.190.197 ech=AEX+DQBBrwAgACCbK1mYDYFz/BAn6S5t+Q/v+Oej3eFNxtPWgz50fNnFPAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:140c,2606:4700:3035::ac43:bec5

📝 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 2026-10-10 05:03:00

www	104.21.20.12 172.67.190.197 2606:4700:3033::6815:140c 2606:4700:3035::ac43:bec5 (AS13335) (address records, no CNAME)
www vs bare domain	Same network tkudvikling.dk: 104.21.20.12 172.67.190.197 2606:4700:3033::6815:140c 2606:4700:3035::ac43:bec5 (AS13335) www.tkudvikling.dk: 104.21.20.12 172.67.190.197 2606:4700:3033::6815:140c 2606:4700:3035::ac43:bec5 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

122ms

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

🏷️ SOA#

64ms

Field	Value
Serial	2416286595
Primary NS (MNAME)	sofia.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 14:49:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-09-23
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

50ms

36ms

AAAA

38ms

TXT

182ms

CAA

38ms

HTTPS

42ms

TLSA

140ms

SOA

64ms

MTA-STS

65ms

DNSSEC

122ms

SRV

78ms

Total

1274ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 05:02:59	2031ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-01 20:32:13 shown	1274ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 20:09:06	1358ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-23 17:02:23	899ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-18 14:53:28	1074ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-11 13:18:19	886ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-07 20:18:38	754ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-11 04:20:48	1760ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-15 13:05:21	9596ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 14:37:13	2810ms	2 NS 2 A 5 MX	🔓 Insecure