horizen.dk

📜 Historical scan 2026-06-25 09:14:40 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

horizen.dk is a .dk domain served by 2 nameservers (ns1.vercel-dns.com, ns2.vercel-dns.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 63ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.vercel-dns.com	198.51.44.13 2620:4d:4000:6259:7:13:0:1	dns1.p13.nsone.net dns1.p13.nsone.net	AS62597 NSONE Inc AS62597 NSONE Inc
ns2.vercel-dns.com	198.51.45.13 2a00:edc0:6259:7:13::2	dns2.p13.nsone.net dns2.p13.nsone.net	AS62597 NSONE Inc AS62597 NSONE Inc

🌍 A Records#

1 records 71ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	300s	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records#

1 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	216.150.16.193
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 118ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	0	443	maildiscover.simply.com

📝 TXT Records#

1 records 309ms

TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

Policy	Record (horizen.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.horizen.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

3 records 75ms

Flags	Tag	Value
0	issue	letsencrypt.org
0	issue	pki.goog
0	issue	sectigo.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 12:43:32

www CNAME	cname.vercel-dns.com (all on vercel-dns.com) → 66.33.60.67 76.76.21.98 (AS16509)
www vs bare domain	Same network horizen.dk: 76.76.21.21 (AS16509) www.horizen.dk: 66.33.60.67 76.76.21.98 (AS16509)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records 62ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

129ms

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

🏷️ SOA#

49ms

Field	Value
Serial	1778243416
Primary NS (MNAME)	ns1.vercel-dns.com
Responsible (RNAME)	hostmaster@nsone.net
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

63ms

71ms

70ms

AAAA

77ms

TXT

309ms

CAA

75ms

HTTPS

52ms

TLSA

62ms

SOA

49ms

MTA-STS

68ms

DNSSEC

129ms

SRV

118ms

Total

973ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 12:43:32	562ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 23:44:57	686ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-13 20:11:02	9624ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 13:07:30	834ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 09:14:40 shown	973ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 04:59:05	1168ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 18:06:21	744ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-19 04:20:47	3497ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 13:29:10	286ms	0 NS 0 A 0 MX	❓ Unknown