preotec.dk

📜 Historical scan 2026-08-24 16:44:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

preotec.dk is a .dk domain served by 2 nameservers (martin.ns.cloudflare.com, rosalyn.ns.cloudflare.com). It was registered on 21 April 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.17.49 is hosted by Cloudflare, Inc. (AS13335). 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 62ms

Nameserver	IP addresses	PTR	ASN / ISP
martin.ns.cloudflare.com	108.162.195.87 162.159.44.87 172.64.35.87 2606:4700:58::a29f:2c57 2803:f800:50::6ca2:c357 2a06:98c1:50::ac40:2357	martin.ns.cloudflare.com martin.ns.cloudflare.com martin.ns.cloudflare.com martin.ns.cloudflare.com martin.ns.cloudflare.com martin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rosalyn.ns.cloudflare.com	108.162.194.59 162.159.38.59 172.64.34.59 2606:4700:50::a29f:263b 2803:f800:50::6ca2:c23b 2a06:98c1:50::ac40:223b	rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.ns.cloudflare.com rosalyn.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 71ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.17.49	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.222.79	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 59ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:1131	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:de4f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 72ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.17.49,172.67.222.79 ech=AEX+DQBBRAAgACDYnv9+PL+keWv1TnVKLsI702zL/ow2lTFJ+sEJmsd5OwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:1131,2606:4700:3034::ac43:de4f

📝 TXT Records#

1 records 199ms

TXT Record
v=spf1 mx -all

✉️ SPF#

Policy	Record (preotec.dk)
-all (hard fail)	v=spf1 mx -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 2026-10-12 19:46:54

www	104.21.17.49 172.67.222.79 2606:4700:3034::6815:1131 2606:4700:3034::ac43:de4f (AS13335) (address records, no CNAME)
www vs bare domain	Same network preotec.dk: 104.21.17.49 172.67.222.79 2606:4700:3034::6815:1131 2606:4700:3034::ac43:de4f (AS13335) www.preotec.dk: 104.21.17.49 172.67.222.79 2606:4700:3034::6815:1131 2606:4700:3034::ac43:de4f (AS13335)
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#

109ms

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	2413014959
Primary NS (MNAME)	martin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 08:29:19

Field	Value
Registrar	united-domains GmbH
Registered	2022-04-21
Expires	2027-04-20 (181d)

📋 WHOIS#

⏱️ Lookup Timing#

62ms

71ms

86ms

AAAA

59ms

TXT

199ms

CAA

71ms

HTTPS

72ms

TLSA

67ms

SOA

0ms

MTA-STS

86ms

DNSSEC

109ms

SRV

91ms

Total

568ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 19:46:54	595ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-06 10:13:34	10314ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-24 16:44:00 shown	568ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-23 11:36:38	870ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-15 00:37:09	3077ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-29 00:37:19	694ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-25 04:44:17	700ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-23 13:42:03	1158ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-21 09:44:48	1171ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 04:47:53	3521ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 12:55:04	2725ms	2 NS 2 A 0 MX	🔓 Insecure