sejlerskole.dk

📜 Historical scan 2026-06-20 18:34:59  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejlerskole.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 March 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.241.107 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by mx1.pub.mailpod11-cph3.one.com, mx2.pub.mailpod11-cph3.one.com and 2 more. The zone is DNSSEC-signed and validates, 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   72ms
NameserverIP addressesPTRASN / ISP
ns01.one.com 195.206.121.10
2001:67c:28cc::10		 ns01.one.com
ns01.one.com		 AS197495 One.com A/S
AS197495 One.com A/S
ns02.one.com 185.10.11.10
2001:67c:3c0::10		 ns02.one.com
ns02.one.com		 AS51468 One.com A/S
AS51468 One.com A/S

🌍 A Records#

1 records   55ms
IPTTLPTRASNISP / OrgCIDRCountryCity
77.111.241.107 3600s webcluster2.wordpresspod2-cph3.one.com AS51468 One.com A/S 77.111.240.0/22 🇩🇰 Denmark Copenhagen

📧 MX Records#

4 records   61ms
PriorityTTLMail ServerIP addressesPTRASN
10 10800s mx1.pub.mailpod11-cph3.one.com 104.37.34.230 mx1.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx2.pub.mailpod11-cph3.one.com 104.37.34.231 mx2.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx3.pub.mailpod11-cph3.one.com 104.37.34.232 mx3.pub.mailpod11-cph3.one.com AS51468 One.com A/S
10 10800s mx4.pub.mailpod11-cph3.one.com 104.37.34.233 mx4.pub.mailpod11-cph3.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover77.111.241.107
🔶 Autoconfig77.111.241.107

🔷 AAAA Records (IPv6)#

1 records   54ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a02:2350:5:104:805e:7043:f575:cf51 3600s — AS51468 One.com A/S 2a02:2350:0:0:0:0:0:0/32 🇩🇰 Denmark Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records   337ms
TXT Record
google-site-verification=oyAcqyKKkSkfyovLnTVyp5CcHnyyZ-rpDCXMYCs5SXU

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-24 23:02:07
www77.111.241.107 2a02:2350:5:104:805e:7043:f575:cf51 (AS51468) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves
CDS / CDNSKEYNone 0 CDS, 0 CDNSKEY

🔗 TLSA / DANE#

4 records   121ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com DANE-EE · SPKI · SHA-256 00E55642F312E05CDB899B1433EDF47F…

🔐 DNSSEC#

236ms
CheckResult
Validation Status🔒 Secure
AD Flag (resolver validates)✓ Set
DS Record✓ Found
DNSKEY Record✓ Found
Flagsfully validated

🏷️ SOA#

79ms
FieldValue
Serial2026052601
Primary NS (MNAME)ns01.one.com
Responsible (RNAME)hostmaster@one.com
Refresh14400s
Retry3600s
Expire1209600s
Minimum (neg-cache TTL)600s

📋 Registration#

WHOIS fetched 2026-10-20 19:26:07
FieldValue
RegistrarPunktum dk A/S (direct)
Registered1999-03-12
Expires2027-03-31 (155d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

DomainRegistrar
sailingschool.dkONE.COM A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
72ms
A
55ms
MX
61ms
AAAA
54ms
TXT
337ms
CAA
82ms
HTTPS
53ms
TLSA
121ms
SOA
79ms
MTA-STS
124ms
DNSSEC
236ms
SRV
144ms
Total
1082ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-24 23:02:07 653ms 2 NS 1 A 4 MX 🔒 Secure
2026-10-20 19:09:58 496ms 2 NS 1 A 4 MX 🔒 Secure
2026-09-30 18:49:57 669ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-27 17:54:31 789ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-21 08:23:13 1822ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-07 06:57:22 5110ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-03 00:23:25 775ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-26 18:17:30 1734ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-26 07:36:19 927ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-24 05:45:05 1145ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-23 20:14:13 1159ms 0 NS 0 A 0 MX ❓ Unknown
2026-06-20 18:34:59 shown 1082ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-18 08:13:43 3086ms 2 NS 1 A 4 MX 🔒 Secure
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