4mdk.dk

📜 Historical scan 2026-09-10 16:40:25 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4mdk.dk is a .dk domain served by 2 nameservers (garret.ns.cloudflare.com, penny.ns.cloudflare.com). It was registered on 8 December 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.19.107 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, 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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
garret.ns.cloudflare.com	108.162.195.246 162.159.44.246 172.64.35.246 2606:4700:58::a29f:2cf6 2803:f800:50::6ca2:c3f6 2a06:98c1:50::ac40:23f6	garret.ns.cloudflare.com garret.ns.cloudflare.com garret.ns.cloudflare.com garret.ns.cloudflare.com garret.ns.cloudflare.com garret.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
penny.ns.cloudflare.com	108.162.194.124 162.159.38.124 172.64.34.124 2606:4700:50::a29f:267c 2803:f800:50::6ca2:c27c 2a06:98c1:50::ac40:227c	penny.ns.cloudflare.com penny.ns.cloudflare.com penny.ns.cloudflare.com penny.ns.cloudflare.com penny.ns.cloudflare.com penny.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 35ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.19.107	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.185.247	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 35ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	2a00:1450:4010:c0a::1b 2a00:1450:4010:c0a::1b 74.125.131.27	lm-in-f27.1e100.net lm-in-x1b.1e100.net lu-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1b	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	172.67.185.247
🔶 Autoconfig	104.21.19.107

🔷 AAAA Records (IPv6)#

2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:136b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:b9f7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.19.107,172.67.185.247 ech=AEX+DQBBBQAgACBLsyNUs9QvAn6Pa87KOtuAzQaLL+XZ5K3nplzmT/hBTQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:136b,2606:4700:3035::ac43:b9f7

📝 TXT Records#

3 records 182ms

TXT Record
google-site-verification=5_cafA84PDrrwJ3fhGtqLXvxvMMwUJoIibydoGErmZY
google-site-verification=r0eRrPpAQKxYzm8nsV10TtRqQ_nxyEFUWiwwgtvBjf8
v=spf1 include:_spf.google.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (4mdk.dk)
-all (hard fail)	v=spf1 include:_spf.google.com include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.4mdk.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@4mdk.dk; ruf=mailto:dmarc@4mdk.dk; fo=1; adkim=s; aspf=s

📬 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 2026-10-13 04:40:49

www	188.114.96.1 188.114.97.1 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network 4mdk.dk: 188.114.96.1 188.114.97.1 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.4mdk.dk: 188.114.96.1 188.114.97.1 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ 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: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.4mdk.dk	ZQxnunF4kLEqWpFZdnwHAXaQkeYqS63-Bz7MBBhZvzc
TXT	_acme-challenge.4mdk.dk	gVLew67RVaIJgf--i2yLACGtwdqPOcqakQqmwnfCHgg

🔗 TLSA / DANE#

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

🔐 DNSSEC#

116ms

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	2414413083
Primary NS (MNAME)	garret.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 17:38:55

Field	Value
Registrar	Simply.com A/S
Registered	2021-12-08
Expires	2026-12-07 (50d)

📋 WHOIS#

⏱️ Lookup Timing#

33ms

35ms

AAAA

51ms

TXT

182ms

CAA

50ms

HTTPS

37ms

TLSA

86ms

SOA

0ms

MTA-STS

59ms

DNSSEC

116ms

SRV

75ms

Total

1914ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 04:40:49	777ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 16:13:46	820ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-24 18:53:47	869ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-15 12:14:06	2209ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-10 16:40:25 shown	1914ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-08 16:39:00	1418ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-04 18:02:55	1510ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 20:48:41	9674ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 02:01:37	2928ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-24 22:53:18	2526ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-29 09:07:48	1576ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-19 18:23:50	8537ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-16 12:46:03	964ms	2 NS 2 A 5 MX	🔓 Insecure