sejlerlinks.dk

📜 Historical scan 2026-06-26 23:42:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejlerlinks.dk is a .dk domain served by 2 nameservers (aspen.ns.cloudflare.com, ridge.ns.cloudflare.com). It was registered on 12 May 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.51 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx1.migadu.com, aspmx2.migadu.com. 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 249ms

Nameserver	IP addresses	PTR	ASN / ISP
aspen.ns.cloudflare.com	108.162.194.109 162.159.38.109 172.64.34.109 2606:4700:50::a29f:266d 2803:f800:50::6ca2:c26d 2a06:98c1:50::ac40:226d	aspen.ns.cloudflare.com aspen.ns.cloudflare.com aspen.ns.cloudflare.com aspen.ns.cloudflare.com aspen.ns.cloudflare.com aspen.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ridge.ns.cloudflare.com	108.162.195.139 162.159.44.139 172.64.35.139 2606:4700:58::a29f:2c8b 2803:f800:50::6ca2:c38b 2a06:98c1:50::ac40:238b	ridge.ns.cloudflare.com ridge.ns.cloudflare.com ridge.ns.cloudflare.com ridge.ns.cloudflare.com ridge.ns.cloudflare.com ridge.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 253ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.55.51	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.144.211	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 237ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	300s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

🔷 AAAA Records (IPv6)#

2 records 256ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:3733	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:90d3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 231ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.55.51,172.67.144.211 ech=AEX+DQBBEgAgACCFkFAAKjfo2CPneM6QG+DsA9Q9AE6ioo5Ed+a1t3MgRwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3733,2606:4700:3033::ac43:90d3

📝 TXT Records#

3 records 472ms

TXT Record
google-site-verification=xLXELg6pURk3cGlcUfzIj7eLRjBi57W6O5v4-ec7Uak
hosted-email-verify=wig1nlpv
v=spf1 include:spf.migadu.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.sejlerlinks.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 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 2026-10-07 19:19:46

www	104.21.55.51 172.67.144.211 2606:4700:3031::6815:3733 2606:4700:3033::ac43:90d3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sejlerlinks.dk: 104.21.55.51 172.67.144.211 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.sejlerlinks.dk: 104.21.55.51 172.67.144.211 2606:4700:3031::6815:3733 2606:4700:3033::ac43:90d3 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

340ms

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

🏷️ SOA#

227ms

Field	Value
Serial	2406642866
Primary NS (MNAME)	aspen.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 17:41:20

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2023-05-12
Expires	2027-05-11 (198d)

📋 WHOIS#

⏱️ Lookup Timing#

249ms

253ms

237ms

AAAA

256ms

TXT

472ms

CAA

233ms

HTTPS

231ms

TLSA

867ms

SOA

227ms

MTA-STS

270ms

DNSSEC

340ms

SRV

234ms

Total

3361ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 19:19:45	1131ms	2 NS 2 A 2 MX	🔓 Insecure
2026-10-05 17:36:19	2774ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-30 17:12:18	1131ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-20 21:27:37	1183ms	2 NS 2 A 2 MX	🔓 Insecure
2026-09-03 20:37:09	2676ms	2 NS 2 A 2 MX	🔓 Insecure
2026-08-09 09:58:41	1960ms	2 NS 2 A 2 MX	🔓 Insecure
2026-07-20 06:52:10	2373ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 23:42:27 shown	3361ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-26 13:48:12	2066ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-25 13:40:07	1644ms	2 NS 2 A 2 MX	🔓 Insecure
2026-06-18 07:24:56	2907ms	2 NS 2 A 2 MX	🔓 Insecure