sejlsportscentret.dk

📜 Historical scan 2026-09-23 12:10:28 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sejlsportscentret.dk is a .dk domain served by 2 nameservers (albert.ns.cloudflare.com, meiling.ns.cloudflare.com). It was registered on 7 March 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.76.211 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 56ms

Nameserver	IP addresses	PTR	ASN / ISP
albert.ns.cloudflare.com	108.162.193.58 172.64.33.58 173.245.59.58 2606:4700:58::adf5:3b3a 2803:f800:50::6ca2:c13a 2a06:98c1:50::ac40:213a	albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com albert.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
meiling.ns.cloudflare.com	108.162.194.254 162.159.38.254 172.64.34.254 2606:4700:50::a29f:26fe 2803:f800:50::6ca2:c2fe 2a06:98c1:50::ac40:22fe	meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.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 67ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.76.211	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.201.61	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 60ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:c93d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:4cd3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 44ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.76.211,172.67.201.61 ech=AEX+DQBBJAAgACCTuwGZ5klhCDps6fSZeh/rhFGvB6eMroxS34GSMc3LBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:c93d,2606:4700:3033::6815:4cd3

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-12 09:39:36

www	104.21.76.211 172.67.201.61 2606:4700:3032::ac43:c93d 2606:4700:3033::6815:4cd3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sejlsportscentret.dk: 104.21.76.211 172.67.201.61 2606:4700:3032::ac43:c93d 2606:4700:3033::6815:4cd3 (AS13335) www.sejlsportscentret.dk: 104.21.76.211 172.67.201.61 2606:4700:3032::ac43:c93d 2606:4700:3033::6815:4cd3 (AS13335)
Wildcard	No

🔗 TLSA / DANE#

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

🔐 DNSSEC#

147ms

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	2415526634
Primary NS (MNAME)	albert.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-22 10:26:43

Field	Value
Registrar	Simply.com A/S
Registered	2025-03-07
Expires	2027-03-06 (129d)

🔗 Same registrant#

38 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
2m.dk	Punktum dk A/S (direct)
a-c.dk	Simply.com A/S
affiliater.dk	Simply.com A/S
bos-cbscsr.dk	Simply.com A/S
brandbase.dk	Simply.com A/S
casinoer-online.dk	Simply.com A/S
danceroyal.dk	Punktum dk A/S (direct)
danishmaritimefair.dk	Simply.com A/S
dril.dk	Simply.com A/S
epos-amu.dk	Simply.com A/S
globalcph.dk	Simply.com A/S
groenogcirkulaer.dk	Simply.com A/S
hosenfeld.dk	Punktum dk A/S (direct)
katalogbutikker.dk	Punktum dk A/S (direct)
kulturhavn.dk	Simply.com A/S
kvidr.dk	Punktum dk A/S (direct)
landhockey.dk	Simply.com A/S
loggershut.dk	Simply.com A/S
lokalhistorisk-arkiv-stenlille.dk	Simply.com A/S
mandoemarathon.dk	Punktum dk A/S (direct)
meew.dk	Simply.com A/S
musikparlamentet.dk	Punktum dk A/S (direct)
onsidebetting.dk	Simply.com A/S
passinfo.dk	Simply.com A/S
renaessanceforum.dk	Simply.com A/S
repeatly.dk	Simply.com A/S
ribe1300.dk	Simply.com A/S
samlerens-bogklub.dk	Simply.com A/S
shareplay.dk	Punktum dk A/S (direct)
sjoveste-spil.dk	Punktum dk A/S (direct)
skodsborgmarathon.dk	Punktum dk A/S (direct)
stop-ttip.dk	Punktum dk A/S (direct)
taasingehk.dk	Simply.com A/S
tourofcph.dk	Simply.com A/S
trekantfest.dk	Simply.com A/S
uu-roskilde.dk	Punktum dk A/S (direct)
videnskabsaar22.dk	Simply.com A/S
vkir.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

56ms

67ms

36ms

AAAA

60ms

TXT

190ms

CAA

46ms

HTTPS

44ms

TLSA

73ms

SOA

0ms

MTA-STS

67ms

DNSSEC

147ms

SRV

87ms

Total

720ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 12:39:25	571ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-23 12:10:28 shown	720ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-08 12:14:56	10096ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-01 10:20:17	542ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-29 14:43:09	9813ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-24 02:08:19	1546ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-17 23:03:56	836ms	2 NS 2 A 0 MX	🔓 Insecure