arsec.dk

📜 Historical scan 2026-09-08 07:58:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arsec.dk is a .dk domain served by 2 nameservers (mariah.ns.cloudflare.com, moura.ns.cloudflare.com). It was registered on 17 October 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.34.90 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.zoho.eu, mx2.zoho.eu and 1 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 152ms

Nameserver	IP addresses	PTR	ASN / ISP
mariah.ns.cloudflare.com	108.162.194.200 162.159.38.200 172.64.34.200 2606:4700:50::a29f:26c8 2803:f800:50::6ca2:c2c8 2a06:98c1:50::ac40:22c8	mariah.ns.cloudflare.com mariah.ns.cloudflare.com mariah.ns.cloudflare.com mariah.ns.cloudflare.com mariah.ns.cloudflare.com mariah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
moura.ns.cloudflare.com	108.162.195.217 162.159.44.217 172.64.35.217 2606:4700:58::a29f:2cd9 2803:f800:50::6ca2:c3d9 2a06:98c1:50::ac40:23d9	moura.ns.cloudflare.com moura.ns.cloudflare.com moura.ns.cloudflare.com moura.ns.cloudflare.com moura.ns.cloudflare.com moura.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 99ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.34.90	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.157	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 153ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mx.zoho.eu	185.230.212.166 185.230.212.166 185.230.212.166	mx3.zoho.eu mx.zoho.eu mx2.zoho.eu	AS205111 ZOHO Corporation B.V AS205111 ZOHO Corporation B.V AS205111 ZOHO Corporation B.V
20	600s	mx2.zoho.eu	185.230.212.166 185.230.212.166 185.230.212.166	mx3.zoho.eu mx.zoho.eu mx2.zoho.eu	AS205111 ZOHO Corporation B.V AS205111 ZOHO Corporation B.V AS205111 ZOHO Corporation B.V
50	600s	mx3.zoho.eu	185.230.212.166 185.230.212.166 185.230.212.166	mx3.zoho.eu mx.zoho.eu mx2.zoho.eu	AS205111 ZOHO Corporation B.V AS205111 ZOHO Corporation B.V AS205111 ZOHO Corporation B.V

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.34.90
🔶 Autoconfig	104.21.34.90

🔷 AAAA Records (IPv6)#

2 records 150ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:225a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:9d9d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 107ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.34.90,172.67.157.157 ech=AEX+DQBBLwAgACBCaxAYXAL2IZ+tRKygjdCwHXI8E8dbyn7rvvBmVDSDGwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:225a,2606:4700:3034::ac43:9d9d

📝 TXT Records#

3 records 229ms

TXT Record
MS=ms32075017
v=spf1 include:zohomail.eu -all
zoho-verification=zb71148249.zmverify.zoho.eu

✉️ SPF#

Policy	Record (arsec.dk)
-all (hard fail)	v=spf1 include:zohomail.eu -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 2026-10-09 01:37:16

www	188.114.96.1 188.114.97.1 2606:4700:3032::6815:225a 2606:4700:3034::ac43:9d9d (AS13335) (address records, no CNAME)
www vs bare domain	Same network arsec.dk: 104.21.34.90 172.67.157.157 2606:4700:3032::6815:225a 2606:4700:3034::ac43:9d9d (AS13335) www.arsec.dk: 188.114.96.1 188.114.97.1 2606:4700:3032::6815:225a 2606:4700:3034::ac43:9d9d (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.arsec.dk	iTbWSE8WF3ADzKv6sB0_EKsD6V1Uo-Bp0Tzr_75VzJg
TXT	_acme-challenge.arsec.dk	r-XnkKl4L_cJawYffhFL2W3XAO9-lZxfevZrxbs8DpM

🔗 TLSA / DANE#

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

🔐 DNSSEC#

179ms

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	2414122628
Primary NS (MNAME)	mariah.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 21:48:32

Field	Value
Registrar	DANDOMAIN A/S
Registered	2024-10-17
Expires	2026-10-16 (expired)

📋 WHOIS#

⏱️ Lookup Timing#

152ms

99ms

153ms

AAAA

150ms

TXT

229ms

CAA

100ms

HTTPS

107ms

TLSA

647ms

SOA

0ms

MTA-STS

115ms

DNSSEC

179ms

SRV

148ms

Total

2199ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-13 10:16:39	1663ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-08 07:58:31 shown	2199ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-28 05:35:52	703ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-16 17:36:14	9649ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-25 16:05:42	1698ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-21 15:51:41	1168ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 13:41:07	945ms	2 NS 2 A 3 MX	🔓 Insecure