ext.dk

📜 Historical scan 2026-06-19 23:19:23 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

ext.dk is a .dk domain served by 2 nameservers (joan.ns.cloudflare.com, leo.ns.cloudflare.com). It was registered on 31 July 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.36.163 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. 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 59ms

Nameserver	IP addresses	PTR	ASN / ISP
joan.ns.cloudflare.com	108.162.192.173 172.64.32.173 173.245.58.173 2606:4700:50::adf5:3aad 2803:f800:50::6ca2:c0ad 2a06:98c1:50::ac40:20ad	joan.ns.cloudflare.com joan.ns.cloudflare.com joan.ns.cloudflare.com joan.ns.cloudflare.com joan.ns.cloudflare.com joan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
leo.ns.cloudflare.com	108.162.195.241 162.159.44.241 172.64.35.241 2606:4700:58::a29f:2cf1 2803:f800:50::6ca2:c3f1 2a06:98c1:50::ac40:23f1	leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com leo.ns.cloudflare.com leo.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 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.36.163	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.196.251	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 81ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b 64.233.161.27	lt-in-f27.1e100.net lt-in-x1b.1e100.net lh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	192.178.158.26 2404:6800:4013:813::1b	lcdels-in-f26.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	172.253.158.26 2404:6800:4003:c26::1b	so-in-f26.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 37ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:24a3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:c4fb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.36.163,172.67.196.251 ech=AEX+DQBBjQAgACDLcc0IVU47ovwQ8f0u0keIUrvqMVxNDz7J9ttgklC2AQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:24a3,2606:4700:3037::ac43:c4fb

📝 TXT Records#

1 records 268ms

TXT Record
v=spf1 include:_spf.mailersend.net ~all

✉️ SPF#

Policy	Record (ext.dk)
~all (soft fail)	v=spf1 include:_spf.mailersend.net ~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 2026-10-08 07:16:18

www	NXDOMAIN
www vs bare domain	www does not resolve ext.dk: 104.21.36.163 172.67.196.251 2606:4700:3031::ac43:c4fb 2606:4700:3035::6815:24a3 (AS13335) www.ext.dk: no address (all like this)
Wildcard	No

🔎 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#

136ms

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

🏷️ SOA#

34ms

Field	Value
Serial	2406791618
Primary NS (MNAME)	joan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-10 23:33:05

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-07-31
Expires	2027-07-31 (284d)

📋 WHOIS#

⏱️ Lookup Timing#

59ms

45ms

81ms

AAAA

37ms

TXT

268ms

CAA

71ms

HTTPS

52ms

TLSA

129ms

SOA

34ms

MTA-STS

81ms

DNSSEC

136ms

SRV

2059ms

Total

2702ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 04:08:34	1138ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 03:21:28	1321ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-20 01:00:55	1720ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-03 02:41:08	1446ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-29 03:48:47	1745ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 00:11:01	737ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-07 03:39:38	1935ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-19 20:08:38	1487ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 21:58:30	993ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-21 08:22:23	3288ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-19 23:19:23 shown	2702ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 09:10:07	1492ms	2 NS 2 A 5 MX	🔓 Insecure