sejlerskolecup.dk

Records from scan: 2026-10-22 00:19:40 · 3164ms total · last checked 2026-10-27 09:19 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejlerskolecup.dk is a .dk domain served by 2 nameservers (nina.ns.cloudflare.com, sid.ns.cloudflare.com). It was registered on 25 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.68.40 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route3.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 91ms

Nameserver	IP addresses	PTR	ASN / ISP
nina.ns.cloudflare.com	108.162.192.136 172.64.32.136 173.245.58.136 2606:4700:50::adf5:3a88 2803:f800:50::6ca2:c088 2a06:98c1:50::ac40:2088	nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com nina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sid.ns.cloudflare.com	108.162.193.143 172.64.33.143 173.245.59.143 2606:4700:58::adf5:3b8f 2803:f800:50::6ca2:c18f 2a06:98c1:50::ac40:218f	sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.ns.cloudflare.com sid.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 155ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.68.40	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.186.83	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 79ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
27	300s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
52	300s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
83	300s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

📧 Autodiscover / Autoconfig#

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

🔷 AAAA Records (IPv6)#

2 records 84ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:4428	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:ba53	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 121ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.68.40,172.67.186.83 ech=AEX+DQBBwwAgACBWsgAkONUSzcIOieAd82NhsPUyOjw0lnuJR7KZyKStDAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:4428,2606:4700:3035::ac43:ba53

📝 TXT Records#

2 records 295ms

TXT Record
google-site-verification=Ei5UzlZAC5qKx3kRRqX0zZ4YTgVjZy_pOdrBIe1CqEg
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (sejlerskolecup.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~all

📨 DMARC#

Policy	Record (_dmarc.sejlerskolecup.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#

✗ No CAA records — any CA may issue certificates

🧩 Web & zone#

checked 2026-10-22 00:19:40

www	104.21.68.40 172.67.186.83 2606:4700:3030::6815:4428 2606:4700:3035::ac43:ba53 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sejlerskolecup.dk: 104.21.68.40 172.67.186.83 2606:4700:3030::6815:4428 2606:4700:3035::ac43:ba53 (AS13335) www.sejlerskolecup.dk: 104.21.68.40 172.67.186.83 2606:4700:3030::6815:4428 2606:4700:3035::ac43:ba53 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 333ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…

🔐 DNSSEC#

214ms

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

🏷️ SOA#

69ms

Field	Value
Serial	2417927498
Primary NS (MNAME)	nina.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 15:17:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2026-02-25
Expires	2027-02-24 (119d)

🔗 Same registrant#

12 domains

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).

Domain	Registrar
24h-aarhus.dk	Punktum dk A/S (direct)
24h-aros.dk	Punktum dk A/S (direct)
aarhus-24h.dk	Punktum dk A/S (direct)
aros-24h.dk	Punktum dk A/S (direct)
sailing-aarhus.dk	Punktum dk A/S (direct)
sailing-danmark.dk	Punktum dk A/S (direct)
sailing-denmark.dk	Punktum dk A/S (direct)
soesikker.dk	Punktum dk A/S (direct)
søsikker.dk	Punktum dk A/S (direct)
uniboat.dk	Punktum dk A/S (direct)
unidomain.dk	Punktum dk A/S (direct)
unipeople.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

91ms

155ms

79ms

AAAA

84ms

TXT

295ms

CAA

153ms

HTTPS

121ms

TLSA

333ms

SOA

69ms

MTA-STS

131ms

DNSSEC

214ms

SRV

179ms

Total

3164ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 00:19:40 shown	3164ms	2 NS 2 A 3 MX	🔓 Insecure
2026-10-03 09:06:43	616ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-30 02:56:51	743ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-19 03:56:06	1711ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-15 07:54:45	1563ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-28 07:56:10	1018ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-22 12:18:07	1976ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-17 08:25:06	9579ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-28 03:04:02	1261ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-24 22:32:16	1232ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-19 18:20:23	1198ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-18 08:49:18	3219ms	2 NS 2 A 3 MX	🔓 Insecure