closed.dk

📜 Historical scan 2026-09-18 08:14:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

closed.dk is a .dk domain served by 2 nameservers (alex.ns.cloudflare.com, nina.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.212.48.200 is hosted by H B H Trade Center v/Henrik Bo Hansen (AS25352) in Denmark. Mail is handled by mx1.improvmx.com, mx2.improvmx.com. The zone is not DNSSEC-signed, has no 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 106ms

Nameserver	IP addresses	PTR	ASN / ISP
alex.ns.cloudflare.com	108.162.193.100 172.64.33.100 173.245.59.100 2606:4700:58::adf5:3b64 2803:f800:50::6ca2:c164 2a06:98c1:50::ac40:2164	alex.ns.cloudflare.com alex.ns.cloudflare.com alex.ns.cloudflare.com alex.ns.cloudflare.com alex.ns.cloudflare.com alex.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nina.ns.cloudflare.com	108.162.192.136 172.64.32.136 173.245.58.136 2606:4700:50::adf5:3a88 2803:f800:50::6ca2:c088 2a06:98c1:50::ac40:2088	nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.212.48.200	300s	—	AS25352	H B H Trade Center v/Henrik Bo Hansen	91.212.48.0/24	🇩🇰 Denmark	—

📧 MX Records#

2 records 109ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.improvmx.com	13.37.195.136 15.236.236.160 2a05:d012:412:e201:88aa:e7b9:7a43:12d7 2a05:d012:412:e202:f36:2c1f:1a49:d38a 2a05:d012:412:e203:373a:f51a:4a85:1d25 35.181.18.45	ec2-13-37-195-136.eu-west-3.compute.amazonaws.com ec2-15-236-236-160.eu-west-3.compute.amazonaws.com — — — ec2-35-181-18-45.eu-west-3.compute.amazonaws.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
20	300s	mx2.improvmx.com	13.36.107.63 13.36.222.39 15.236.61.92 2a05:d012:412:e201:1f6e:f6e4:8fd7:4678 2a05:d012:412:e202:e81e:cc44:3b53:8a3d 2a05:d012:412:e203:7e33:3d9c:28d7:ee20	ec2-13-36-107-63.eu-west-3.compute.amazonaws.com ec2-13-36-222-39.eu-west-3.compute.amazonaws.com ec2-15-236-61-92.eu-west-3.compute.amazonaws.com — — —	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.88.54
🔶 Autoconfig	104.21.88.54

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 295ms

TXT Record
v=spf1 include:spf.improvmx.com ~all

✉️ SPF#

Policy	Record (closed.dk)
~all (soft fail)	v=spf1 include:spf.improvmx.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#

latest probe, not this scan · checked 2026-10-10 00:32:09

www	104.21.88.54 172.67.173.12 2606:4700:3031::ac43:ad0c 2606:4700:3035::6815:5836 (AS13335) (address records, no CNAME)
www vs bare domain	Different networks closed.dk: 91.212.48.200 (AS25352) www.closed.dk: 104.21.88.54 172.67.173.12 2606:4700:3031::ac43:ad0c 2606:4700:3035::6815:5836 (AS13335) (all like this)
Wildcard	Yes: any name under the zone resolves

🔎 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#

164ms

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	2414905141
Primary NS (MNAME)	alex.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

106ms

94ms

109ms

AAAA

100ms

TXT

295ms

CAA

125ms

HTTPS

167ms

TLSA

285ms

SOA

0ms

MTA-STS

126ms

DNSSEC

164ms

SRV

160ms

Total

2117ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-01 06:55:27	768ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-26 13:23:39	1085ms	2 NS 1 A 2 MX	🔓 Insecure
2026-09-18 08:14:24 shown	2117ms	2 NS 1 A 2 MX	🔓 Insecure
2026-07-30 05:52:54	11402ms	2 NS 1 A 2 MX	🔓 Insecure
2026-07-16 03:44:57	1376ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-30 15:18:19	1033ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-16 21:22:13	492ms	2 NS 1 A 2 MX	🔓 Insecure
2026-06-16 21:21:12	686ms	2 NS 1 A 2 MX	🔓 Insecure