doubble.dk

📜 Historical scan 2026-07-25 09:52:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

doubble.dk is a .dk domain served by 2 nameservers (ariella.ns.cloudflare.com, kayden.ns.cloudflare.com). It was registered on 1 June 2021 (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). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, publishes a 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 42ms

Nameserver	IP addresses	PTR	ASN / ISP
ariella.ns.cloudflare.com	108.162.194.32 162.159.38.32 172.64.34.32 2606:4700:50::a29f:2620 2803:f800:50::6ca2:c220 2a06:98c1:50::ac40:2220	ariella.ns.cloudflare.com ariella.ns.cloudflare.com ariella.ns.cloudflare.com ariella.ns.cloudflare.com ariella.ns.cloudflare.com ariella.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
kayden.ns.cloudflare.com	108.162.195.74 162.159.44.74 172.64.35.74 2606:4700:58::a29f:2c4a 2803:f800:50::6ca2:c34a 2a06:98c1:50::ac40:234a	kayden.ns.cloudflare.com kayden.ns.cloudflare.com kayden.ns.cloudflare.com kayden.ns.cloudflare.com kayden.ns.cloudflare.com kayden.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 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	300s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

5 records 55ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c03::1b	rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1a	lcbomp-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	192.178.230.26 2404:6800:400b:c01b::1b	yunrtab-in-f26.1e100.net yunrtab-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 69ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 56ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBhQAgACCsBiWspWjHzCLz278GdCrSbKABpRB6d0SdyK5bSygwdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

📝 TXT Records#

4 records 203ms

TXT Record
google-site-verification=MpbBaZCegztJZEEnu8lB9hLxsCy8FXUIyNHS3p-0Zng
google-site-verification=X4Pa6RKB5Kxcfw-fgC-30so5BRF4NnHTkwvAnlGEZYU
have-i-been-pwned-verification=dweb_bfoi5k828cg1bluogm7chqgs
v=spf1 include:_spf.google.com -all

✉️ SPF#

Policy	Record (doubble.dk)
-all (hard fail)	v=spf1 include:_spf.google.com -all

📨 DMARC#

Policy	Record (_dmarc.doubble.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:06ff55aabbf048c381017dc60c8e3fc9@dmarc-reports.cloudflare.net,mailto:dmarc@doubble.dk

📬 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 15:55:40

www	NXDOMAIN
www vs bare domain	www does not resolve doubble.dk: 104.26.4.116 104.26.5.116 172.67.69.181 2a06:98c1:3120::1 (AS13335) www.doubble.dk: no address (all like this)
Wildcard	No

✍️ DKIM keys#

3 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit
s1	s1.domainkey.u22664365.wl116.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u22664365.wl116.sendgrid.net	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

161ms

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	2410440570
Primary NS (MNAME)	ariella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 09:12:56

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-06-01
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

88ms

55ms

AAAA

69ms

TXT

203ms

CAA

73ms

HTTPS

56ms

TLSA

8086ms

SOA

0ms

MTA-STS

85ms

DNSSEC

161ms

SRV

134ms

Total

9621ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 05:51:55	1377ms	2 NS 3 A 5 MX	🔓 Insecure
2026-09-25 13:53:45	1518ms	2 NS 3 A 5 MX	🔓 Insecure
2026-09-24 21:16:21	1579ms	2 NS 3 A 5 MX	🔓 Insecure
2026-09-23 20:33:40	898ms	2 NS 3 A 5 MX	🔓 Insecure
2026-09-08 17:08:00	1576ms	2 NS 3 A 5 MX	🔓 Insecure
2026-08-28 09:20:29	1234ms	2 NS 3 A 5 MX	🔓 Insecure
2026-08-27 09:49:34	1016ms	2 NS 3 A 5 MX	🔓 Insecure
2026-07-25 09:52:23 shown	9621ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-13 07:28:18	1437ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 13:04:49	1618ms	2 NS 3 A 5 MX	🔓 Insecure
2026-06-19 20:39:46	3910ms	2 NS 3 A 5 MX	🔓 Insecure
2026-06-17 04:21:15	685ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 04:20:25	650ms	2 NS 3 A 5 MX	🔓 Insecure