dubious.dk

Records from scan: 2026-10-01 03:06:57 · 923ms total · last checked 2026-10-20 03:20 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dubious.dk is a .dk domain served by 4 nameservers (ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and 1 more). It was registered on 19 October 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

4 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-cloud-d1.googledomains.com	2001:4860:4802:32::6d 216.239.32.109	ns-cloud-d1.googledomains.com ns-cloud-d1.googledomains.com	AS15169 Google LLC AS15169 Google LLC
ns-cloud-d2.googledomains.com	2001:4860:4802:34::6d 216.239.34.109	ns-cloud-d2.googledomains.com ns-cloud-d2.googledomains.com	AS15169 Google LLC AS15169 Google LLC
ns-cloud-d3.googledomains.com	2001:4860:4802:36::6d 216.239.36.109	ns-cloud-d3.googledomains.com ns-cloud-d3.googledomains.com	AS15169 Google LLC AS15169 Google LLC
ns-cloud-d4.googledomains.com	2001:4860:4802:38::6d 216.239.38.109	ns-cloud-d4.googledomains.com ns-cloud-d4.googledomains.com	AS15169 Google LLC AS15169 Google LLC

🌍 A Records#

🌍

No A records found

📧 MX Records#

2 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx01.mail.icloud.com	17.42.251.62 17.42.251.62 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.154.33 17.57.155.25 17.57.156.30	mx3.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com smtp1.ic4-privaterelay.appleid.com mx01.mail.icloud.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx01.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.
10	600s	mx02.mail.icloud.com	17.156.200.28 17.42.251.62 17.42.251.62 17.56.9.31 17.57.152.5 17.57.152.5 17.57.152.5 17.57.155.25 17.57.156.30	— mx01.mail.icloud.com mx3.mail.icloud.com mx01.mail.icloud.com smtp1.ic4-privaterelay.appleid.com mx01.mail.icloud.com ic4-privaterelay.appleid.com mx01.mail.icloud.com mx01.mail.icloud.com	AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc. AS714 Apple Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	88.198.28.3
🔶 Autoconfig	88.198.28.3

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 323ms

TXT Record
apple-domain=kAMkqzeI57WiOWWr
v=spf1 include:icloud.com ~all

✉️ SPF#

Policy	Record (dubious.dk)
~all (soft fail)	v=spf1 include:icloud.com ~all

📨 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#

checked 2026-10-08 05:45:32

www	88.198.28.3 (AS24940) (address records, no CNAME)
www vs bare domain	Only www resolves dubious.dk: no address www.dubious.dk: 88.198.28.3 (AS24940) (all like this)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 8-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.dubious.dk	DUlue0RsrsjnxLHla3zMDFdnryOzDs85QvKoydCoTtw
TXT	_acme-challenge.dubious.dk	txgRD7v9hLhigUKT1TaEcQNIiwg26xeuSaJozHMSKl8

🔗 TLSA / DANE#

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

🔐 DNSSEC#

106ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

116ms

Field	Value
Serial	1
Primary NS (MNAME)	ns-cloud-d1.googledomains.com
Responsible (RNAME)	cloud-dns-hostmaster@google.com
Refresh	21600s
Retry	3600s
Expire	259200s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-18 05:03:39

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-10-19
Expires	2027-07-31 (283d)

📋 WHOIS#

⏱️ Lookup Timing#

54ms

98ms

60ms

AAAA

57ms

TXT

323ms

CAA

61ms

HTTPS

59ms

TLSA

89ms

SOA

116ms

MTA-STS

101ms

DNSSEC

106ms

SRV

126ms

Total

923ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 03:06:57 shown	923ms	4 NS 0 A 2 MX	🔓 Insecure
2026-09-23 11:52:50	3124ms	4 NS 0 A 2 MX	🔓 Insecure
2026-09-04 14:34:47	9262ms	4 NS 0 A 2 MX	🔓 Insecure
2026-08-27 11:41:02	3061ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-26 20:17:00	2458ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-23 14:58:01	971ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-23 06:21:38	1109ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 00:46:51	1357ms	4 NS 0 A 2 MX	🔓 Insecure
2026-06-17 04:55:09	2822ms	4 NS 0 A 2 MX	🔓 Insecure