jancw.dk

📜 Historical scan 2026-08-31 23:54:15 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jancw.dk is a .dk domain served by 2 nameservers (georgia.ns.cloudflare.com, jihoon.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.17.42 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 32ms

Nameserver	IP addresses	PTR	ASN / ISP
georgia.ns.cloudflare.com	108.162.194.48 162.159.38.48 172.64.34.48 2606:4700:50::a29f:2630 2803:f800:50::6ca2:c230 2a06:98c1:50::ac40:2230	georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com georgia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jihoon.ns.cloudflare.com	108.162.195.233 162.159.44.233 172.64.35.233 2606:4700:58::a29f:2ce9 2803:f800:50::6ca2:c3e9 2a06:98c1:50::ac40:23e9	jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.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
104.21.17.42	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.220.253	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::ac43:dcfd	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:112a	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=104.21.17.42,172.67.220.253 ech=AEX+DQBBzwAgACBs9iAdQ+BgMrTqSy5J7RhiSF7hZCc4sEnGxxiXoa1SeAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:dcfd,2606:4700:3037::6815:112a

📝 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 07:55:37

www	104.21.17.42 172.67.220.253 2606:4700:3034::ac43:dcfd 2606:4700:3037::6815:112a (AS13335) (address records, no CNAME)
www vs bare domain	Same network jancw.dk: 104.21.17.42 172.67.220.253 2606:4700:3034::ac43:dcfd 2606:4700:3037::6815:112a (AS13335) www.jancw.dk: 104.21.17.42 172.67.220.253 2606:4700:3034::ac43:dcfd 2606:4700:3037::6815:112a (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.jancw.dk	--cVmM0vkqBN3AuN_zlnTsTj8N3h1W50eMZGXnhfRlU
TXT	_acme-challenge.jancw.dk	Sslb8EcqTp3o8kthYW5TplesfQK6G_Cfm5udHGbGXjY

🔗 TLSA / DANE#

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

🔐 DNSSEC#

104ms

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	2413687037
Primary NS (MNAME)	georgia.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#

32ms

30ms

AAAA

52ms

TXT

143ms

CAA

25ms

HTTPS

34ms

TLSA

53ms

SOA

0ms

MTA-STS

42ms

DNSSEC

104ms

SRV

60ms

Total

489ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 06:03:14	514ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 18:54:26	9448ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-08 01:43:51	2038ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-31 23:54:15 shown	489ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 03:35:35	567ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-03 19:04:06	1203ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-02 14:38:58	1388ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-26 06:14:12	1038ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-22 16:01:46	2084ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-21 18:41:40	2272ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 21:08:41	1280ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 18:50:01	966ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-20 11:17:47	2567ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-18 20:02:21	3069ms	4 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:11:46	803ms	4 NS 1 A 1 MX	🔓 Insecure