ext.dk

📜 Historical scan 2026-08-29 03:48:47 · ← 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 89ms

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 61ms

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 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt1.aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	300s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx2.googlemail.com	142.250.147.26 2a00:1450:4025:c01::1b	rd-in-f26.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	300s	aspmx3.googlemail.com	172.253.152.26 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

2 records 64ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:c4fb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:24a3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 79ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.36.163,172.67.196.251 ech=AEX+DQBBNwAgACBuUCQQjXcLlxHchwTrbzuY+a28cR55jd8ZlQCcli5KcQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:c4fb,2606:4700:3035::6815:24a3

📝 TXT Records#

1 records 401ms

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#

304ms

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	2413391632
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 (285d)

📋 WHOIS#

⏱️ Lookup Timing#

89ms

61ms

80ms

AAAA

64ms

TXT

401ms

CAA

84ms

HTTPS

79ms

TLSA

279ms

SOA

0ms

MTA-STS

237ms

DNSSEC

304ms

SRV

127ms

Total

1745ms

🕐 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 shown	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	2702ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-17 09:10:07	1492ms	2 NS 2 A 5 MX	🔓 Insecure