20837604.dk

📜 Historical scan 2026-09-24 13:17:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

20837604.dk is a .dk domain served by 2 nameservers (ajay.ns.cloudflare.com, miki.ns.cloudflare.com). It was registered on 7 March 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.74.4 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by in1-smtp.messagingengine.com, in2-smtp.messagingengine.com. The zone is not DNSSEC-signed, has no 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 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ajay.ns.cloudflare.com	108.162.193.56 172.64.33.56 173.245.59.56 2606:4700:58::adf5:3b38 2803:f800:50::6ca2:c138 2a06:98c1:50::ac40:2138	ajay.ns.cloudflare.com ajay.ns.cloudflare.com ajay.ns.cloudflare.com ajay.ns.cloudflare.com ajay.ns.cloudflare.com ajay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
miki.ns.cloudflare.com	108.162.192.202 172.64.32.202 173.245.58.202 2606:4700:50::adf5:3aca 2803:f800:50::6ca2:c0ca 2a06:98c1:50::ac40:20ca	miki.ns.cloudflare.com miki.ns.cloudflare.com miki.ns.cloudflare.com miki.ns.cloudflare.com miki.ns.cloudflare.com miki.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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.74.4	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.194.56	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	in1-smtp.messagingengine.com	103.168.172.216 103.168.172.217 103.168.172.218 103.168.172.219 103.168.172.220 103.168.172.221 103.168.172.222 103.168.172.223	phl-mx-01.messagingengine.com phl-mx-02.messagingengine.com phl-mx-03.messagingengine.com phl-mx-04.messagingengine.com phl-mx-05.messagingengine.com phl-mx-06.messagingengine.com phl-mx-07.messagingengine.com phl-mx-08.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd
20	300s	in2-smtp.messagingengine.com	202.12.124.216 202.12.124.217 202.12.124.218 202.12.124.219	stl-mx-01.messagingengine.com stl-mx-02.messagingengine.com stl-mx-03.messagingengine.com stl-mx-04.messagingengine.com	AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd AS151847 Fastmail Pty Ltd

🔷 AAAA Records (IPv6)#

2 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:4a04	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:c238	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.74.4,172.67.194.56 ech=AEX+DQBBqwAgACCNq4XxLhrI0tLTjjGB1pTcyJz1UaKcIwvO7N/wCdLZDwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4a04,2606:4700:3033::ac43:c238

📝 TXT Records#

1 records 176ms

TXT Record
google-site-verification=6ax640-_5H4b5tBSfjS0xSc-iJ9rkTPmxIBYB-VjmgA

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-08 16:18:50

www	NXDOMAIN
www vs bare domain	www does not resolve 20837604.dk: 104.21.74.4 172.67.194.56 2606:4700:3032::6815:4a04 2606:4700:3033::ac43:c238 (AS13335) www.20837604.dk: no address (all like this)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

111ms

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	2415706461
Primary NS (MNAME)	ajay.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 07:25:33

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2018-03-07
Expires	2027-07-31 (287d)

🔗 Same registrant#

1 domain

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).

Domain	Registrar
brændekløver.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

38ms

42ms

29ms

AAAA

34ms

TXT

176ms

CAA

45ms

HTTPS

38ms

TLSA

342ms

SOA

0ms

MTA-STS

55ms

DNSSEC

111ms

SRV

59ms

Total

1773ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 16:18:50	1169ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-24 13:17:49 shown	1773ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-23 12:55:15	968ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-11 03:01:21	969ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-28 09:47:01	2801ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-23 04:32:38	2212ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-06 22:41:18	2081ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-27 16:37:09	1980ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-20 06:43:40	905ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 13:19:21	15613ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-16 13:12:54	918ms	2 NS 2 A 2 MX	🔓 Insecure