sudoku-online.dk

📜 Historical scan 2026-06-25 07:02:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sudoku-online.dk is a .dk domain served by 2 nameservers (kate.ns.cloudflare.com, matt.ns.cloudflare.com). It was registered on 19 June 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.114.96.1 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
kate.ns.cloudflare.com	108.162.192.124 172.64.32.124 173.245.58.124 2606:4700:50::adf5:3a7c 2803:f800:50::6ca2:c07c 2a06:98c1:50::ac40:207c	kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com kate.ns.cloudflare.com — kate.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
matt.ns.cloudflare.com	108.162.193.131 172.64.33.131 173.245.59.131 2606:4700:58::adf5:3b83 2803:f800:50::6ca2:c183 2a06:98c1:50::ac40:2183	matt.ns.cloudflare.com matt.ns.cloudflare.com matt.ns.cloudflare.com matt.ns.cloudflare.com matt.ns.cloudflare.com matt.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 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	600s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	600s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 31ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.28.150,172.67.170.226 ech=AEX+DQBBVgAgACBdG8sksqgrohTJgNZzzCy9VY2dz59GfxpdFuyToyulLwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:1c96,2606:4700:3036::ac43:aae2

📝 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 2026-10-14 15:27:58

www	104.21.28.150 172.67.170.226 2606:4700:3031::6815:1c96 2606:4700:3031::ac43:aae2 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sudoku-online.dk: 104.21.28.150 172.67.170.226 2606:4700:3031::6815:1c96 2606:4700:3031::ac43:aae2 (AS13335) www.sudoku-online.dk: 104.21.28.150 172.67.170.226 2606:4700:3031::6815:1c96 2606:4700:3031::ac43:aae2 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

68ms

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

🏷️ SOA#

53ms

Field	Value
Serial	2405469957
Primary NS (MNAME)	kate.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 22:56:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-06-19
Expires	2027-06-18 (233d)

📋 WHOIS#

⏱️ Lookup Timing#

32ms

67ms

49ms

AAAA

41ms

TXT

194ms

CAA

54ms

HTTPS

31ms

TLSA

45ms

SOA

53ms

MTA-STS

68ms

DNSSEC

68ms

SRV

220ms

Total

791ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 02:08:38	1565ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 01:27:57	449ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 20:40:54	728ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-08 03:09:26	1382ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-27 12:10:00	17444ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 07:02:31 shown	791ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-20 02:43:32	433ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 13:05:58	595ms	2 NS 2 A 0 MX	🔓 Insecure