doubble.dk DNS records

🖥️ Nameservers2 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
ariella.ns.cloudflare.com	—	—	—
kayden.ns.cloudflare.com	—	—	—

🌍 A Records3 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.26.4.116	—	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
104.26.5.116	—	—	AS13335	Cloudflare, Inc.	104.26.0.0/20	—	—
172.67.69.181	—	—	AS13335	Cloudflare, Inc.	172.67.64.0/18	—	—

📧 MX Records5 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	aspmx.l.google.com	172.253.130.27	yulppbn-in-f27.1e100.net	AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	172.253.158.27	so-in-f27.1e100.net	AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	108.177.125.27	tp-in-f27.1e100.net	AS15169 Google LLC
10	—	alt3.aspmx.l.google.com	192.178.230.27	yunrtab-in-f27.1e100.net	AS15169 Google LLC
10	—	alt4.aspmx.l.google.com	173.194.43.27	yudlsqd-in-f27.1e100.net	AS15169 Google LLC

🔷 AAAA Records (IPv6)3 records 41ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:20::681a:474	—	—	AS13335	Cloudflare, Inc.	2606:4700::/41	—	—
2606:4700:20::681a:574	—	—	AS13335	Cloudflare, Inc.	2606:4700::/41	—	—
2606:4700:20::ac43:45b5	—	—	AS13335	Cloudflare, Inc.	2606:4700::/41	—	—

🔐 HTTPS Records1 records 43ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.26.4.116,104.26.5.116,172.67.69.181 ech=AEX+DQBBTgAgACBkv//ZxP4Vaum9fERkUVoG+f/WeY8RgzuorCx9S5g9PgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:20::681a:474,2606:4700:20::681a:574,2606:4700:20::ac43:45b5

📝 TXT Records4 records 101ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC78ms

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

🏷️ SOA35ms

Field	Value
Serial	2403963393
Primary NS (MNAME)	ariella.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

59ms

A

38ms

MX

38ms

AAAA

41ms

TXT

101ms

CAA

62ms

HTTPS

43ms

TLSA

126ms

SOA

35ms

MTA-STS

56ms

DNSSEC

78ms

SRV

0ms

Total

650ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 09:20:29	1234ms	2 NS 3 A 5 MX	🔓 Insecure	View
2026-08-27 09:49:34	1016ms	2 NS 3 A 5 MX	🔓 Insecure	View
2026-07-25 09:52:23	9621ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-07-13 07:28:18	1437ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-25 13:04:49	1618ms	2 NS 3 A 5 MX	🔓 Insecure	View
2026-06-19 20:39:46	3910ms	2 NS 3 A 5 MX	🔓 Insecure	View
2026-06-17 04:21:15	685ms	2 NS 2 A 5 MX	🔓 Insecure	View
2026-06-17 04:20:25	650ms	2 NS 3 A 5 MX	🔓 Insecure	View