doubleup.dk

📜 Historical scan 2026-06-21 22:11:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

doubleup.dk is a .dk domain served by 2 nameservers (arnold.ns.cloudflare.com, carioca.ns.cloudflare.com). It was registered on 22 August 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 37ms

Nameserver	IP addresses	PTR	ASN / ISP
arnold.ns.cloudflare.com	108.162.193.69 172.64.33.69 173.245.59.69 2606:4700:58::adf5:3b45 2803:f800:50::6ca2:c145 2a06:98c1:50::ac40:2145	arnold.ns.cloudflare.com arnold.ns.cloudflare.com arnold.ns.cloudflare.com arnold.ns.cloudflare.com arnold.ns.cloudflare.com arnold.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
carioca.ns.cloudflare.com	108.162.194.20 162.159.38.20 172.64.34.20 2606:4700:50::a29f:2614 2803:f800:50::6ca2:c214 2a06:98c1:50::ac40:2214	carioca.ns.cloudflare.com carioca.ns.cloudflare.com carioca.ns.cloudflare.com carioca.ns.cloudflare.com carioca.ns.cloudflare.com carioca.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 288ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (doubleup.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.doubleup.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s;

📬 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 2026-10-12 02:59:23

www	NXDOMAIN
www vs bare domain	Neither resolves doubleup.dk: no address www.doubleup.dk: no address
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

75ms

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

🏷️ SOA#

31ms

Field	Value
Serial	2405379924
Primary NS (MNAME)	arnold.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-09 15:01:16

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-08-22
Expires	2027-08-31 (313d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

33ms

36ms

AAAA

49ms

TXT

288ms

CAA

53ms

HTTPS

55ms

TLSA

34ms

SOA

31ms

MTA-STS

67ms

DNSSEC

75ms

SRV

80ms

Total

472ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 08:11:09	484ms	2 NS 0 A 0 MX	🔓 Insecure
2026-09-13 20:22:06	2099ms	2 NS 0 A 0 MX	🔓 Insecure
2026-08-27 17:04:05	430ms	2 NS 0 A 0 MX	🔓 Insecure
2026-08-26 16:09:37	468ms	2 NS 0 A 0 MX	🔓 Insecure
2026-08-25 07:40:56	1161ms	2 NS 0 A 0 MX	🔓 Insecure
2026-07-01 18:04:24	1252ms	2 NS 0 A 0 MX	🔓 Insecure
2026-06-21 22:11:31 shown	472ms	2 NS 0 A 0 MX	🔓 Insecure
2026-06-21 16:12:50	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 04:22:51	271ms	2 NS 0 A 0 MX	🔓 Insecure
2026-06-17 04:21:01	440ms	2 NS 0 A 0 MX	🔓 Insecure