thirtyseven.dk

📜 Historical scan 2026-08-07 11:35:14 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

thirtyseven.dk is a .dk domain served by 2 nameservers (carrera.ns.cloudflare.com, salvador.ns.cloudflare.com). It was registered on 15 April 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.46.185 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by smtp.google.com. 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 96ms

Nameserver	IP addresses	PTR	ASN / ISP
carrera.ns.cloudflare.com	108.162.194.231 162.159.38.231 172.64.34.231 2606:4700:50::a29f:26e7 2803:f800:50::6ca2:c2e7 2a06:98c1:50::ac40:22e7	carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
salvador.ns.cloudflare.com	108.162.195.100 162.159.44.100 172.64.35.100 2606:4700:58::a29f:2c64 2803:f800:50::6ca2:c364 2a06:98c1:50::ac40:2364	salvador.ns.cloudflare.com salvador.ns.cloudflare.com salvador.ns.cloudflare.com salvador.ns.cloudflare.com salvador.ns.cloudflare.com salvador.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 87ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.46.185	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.141.97	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 134ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	smtp.google.com	142.250.147.26 142.250.147.27 142.251.9.26 142.251.9.27 2a00:1450:4025:c01::1a 2a00:1450:4025:c01::1b 2a00:1450:4025:c03::1a 2a00:1450:4025:c03::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net rd-in-f26.1e100.net rd-in-f27.1e100.net rc-in-f26.1e100.net rc-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 135ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:2eb9	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::ac43:8d61	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 113ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.46.185,172.67.141.97 ech=AEX+DQBBlgAgACBOVa41xu6bcV+LlvC50h2hZ68KJTI7OuQfWbRlzdxGSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:2eb9,2606:4700:3031::ac43:8d61

📝 TXT Records#

2 records 301ms

TXT Record
google-site-verification=LWN8YFbM9nTjsVBJPnP1fjRMFPyk1Y1CPBOccMq2Iws
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (thirtyseven.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.thirtyseven.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:15e5908b864e4670b2ba8feb44c433c3@dmarc-reports.cloudflare.net

📬 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 15:43:43

www	104.21.46.185 172.67.141.97 2606:4700:3031::6815:2eb9 2606:4700:3031::ac43:8d61 (AS13335) (address records, no CNAME)
www vs bare domain	Same network thirtyseven.dk: 104.21.46.185 172.67.141.97 2606:4700:3031::6815:2eb9 2606:4700:3031::ac43:8d61 (AS13335) www.thirtyseven.dk: 104.21.46.185 172.67.141.97 2606:4700:3031::6815:2eb9 2606:4700:3031::ac43:8d61 (AS13335)
Wildcard	No

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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#

175ms

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	2410841753
Primary NS (MNAME)	carrera.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 23:38:30

Field	Value
Registrar	ONE.COM A/S
Registered	2026-04-15
Expires	2027-04-14 (177d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

96ms

87ms

134ms

AAAA

135ms

TXT

301ms

CAA

134ms

HTTPS

113ms

TLSA

1413ms

SOA

0ms

MTA-STS

169ms

DNSSEC

175ms

SRV

188ms

Total

2783ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 15:43:43	2945ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 23:16:46	1554ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-23 21:45:23	811ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 05:47:34	819ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 12:14:00	615ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 19:49:07	1111ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-07 11:35:14 shown	2783ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-13 03:15:39	1621ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 07:04:09	887ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 15:27:27	1059ms	2 NS 2 A 1 MX	🔓 Insecure