linkcheck.dk

📜 Historical scan 2026-07-13 21:51:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

linkcheck.dk is a .dk domain served by 2 nameservers (sri.ns.cloudflare.com, wally.ns.cloudflare.com). It was registered on 28 October 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.52.78 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by exchange.cphdomain.com. 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 31ms

Nameserver	IP addresses	PTR	ASN / ISP
sri.ns.cloudflare.com	108.162.193.234 172.64.33.234 173.245.59.234 2606:4700:58::adf5:3bea 2803:f800:50::6ca2:c1ea 2a06:98c1:50::ac40:21ea	sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com sri.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
wally.ns.cloudflare.com	108.162.192.239 172.64.32.239 173.245.58.239 2606:4700:50::adf5:3aef 2803:f800:50::6ca2:c0ef 2a06:98c1:50::ac40:20ef	wally.ns.cloudflare.com wally.ns.cloudflare.com wally.ns.cloudflare.com wally.ns.cloudflare.com wally.ns.cloudflare.com wally.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 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.52.78	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.196.233	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	exchange.cphdomain.com	—	—	—

🔷 AAAA Records (IPv6)#

2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:344e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:c4e9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.52.78,172.67.196.233 ech=AEX+DQBBCwAgACC2aBfMKLryyBPw4MQDvu6fQC25/Y4SbIh49phvlKxWJgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:344e,2606:4700:3037::ac43:c4e9

📝 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 14:30:52

www	104.21.52.78 172.67.196.233 2606:4700:3031::6815:344e 2606:4700:3037::ac43:c4e9 (AS13335) (address records, no CNAME)
www vs bare domain	Same network linkcheck.dk: 104.21.52.78 172.67.196.233 2606:4700:3031::6815:344e 2606:4700:3037::ac43:c4e9 (AS13335) www.linkcheck.dk: 104.21.52.78 172.67.196.233 2606:4700:3031::6815:344e 2606:4700:3037::ac43:c4e9 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

60ms

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	2409456086
Primary NS (MNAME)	sri.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 15:18:15

Field	Value
Registrar	Abion AB
Registered	2002-10-28
Expires	2026-12-31 (71d)

📋 WHOIS#

⏱️ Lookup Timing#

31ms

32ms

AAAA

39ms

TXT

179ms

CAA

34ms

HTTPS

34ms

TLSA

97ms

SOA

0ms

MTA-STS

47ms

DNSSEC

60ms

SRV

43ms

Total

939ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 14:30:52	1009ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-07 12:08:26	508ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-04 11:03:10	645ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 12:45:09	653ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 13:57:19	634ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-13 05:40:35	1524ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-06 04:59:54	735ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 19:35:07	1051ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-13 21:51:30 shown	939ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 19:33:14	1127ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 17:57:38	1175ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 12:56:13	656ms	2 NS 2 A 1 MX	🔓 Insecure