sluseholmen.dk DNS records

🖥️ Nameservers2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
fay.ns.cloudflare.com	108.162.192.115 172.64.32.115 173.245.58.115 2606:4700:50::adf5:3a73 2803:f800:50::6ca2:c073 2a06:98c1:50::ac40:2073	fay.ns.cloudflare.com fay.ns.cloudflare.com fay.ns.cloudflare.com fay.ns.cloudflare.com fay.ns.cloudflare.com fay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
weston.ns.cloudflare.com	108.162.195.138 162.159.44.138 172.64.35.138 2606:4700:58::a29f:2c8a 2803:f800:50::6ca2:c38a 2a06:98c1:50::ac40:238a	weston.ns.cloudflare.com weston.ns.cloudflare.com weston.ns.cloudflare.com weston.ns.cloudflare.com weston.ns.cloudflare.com weston.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.95.50	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.143.67	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records2 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.143.67
🔶 Autoconfig	172.67.143.67

🔷 AAAA Records (IPv6)2 records 32ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:8f43	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:5f32	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 28ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.95.50,172.67.143.67 ech=AEX+DQBBvwAgACC4epbPwsz4FZ//yHIyrHUTo3aPJVpcva8mZUTqXhCgZgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:8f43,2606:4700:3036::6815:5f32

📝 TXT Records2 records 159ms

TXT Record
facebook-domain-verification=iz1tvcuwoqv2x8q2kf5uvu1zv9d2jf
v=spf1 include:spf.onlinemail.io ?all

✉️ SPF

Policy	Record (sluseholmen.dk)
?all (neutral)	v=spf1 include:spf.onlinemail.io ?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

🔗 TLSA / DANE

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

🔐 DNSSEC97ms

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

🏷️ SOA0ms

Field	Value
Serial	2413383130
Primary NS (MNAME)	fay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

32ms

A

27ms

MX

32ms

AAAA

32ms

TXT

159ms

CAA

26ms

HTTPS

28ms

TLSA

53ms

SOA

0ms

MTA-STS

70ms

DNSSEC

97ms

SRV

69ms

Total

631ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-29 15:09:29	631ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-25 14:37:13	639ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-22 15:29:55	17191ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-08-13 07:37:31	3067ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-30 20:52:33	807ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-26 06:23:37	5716ms	2 NS 2 A 2 MX	🔓 Insecure	View
2026-06-24 14:08:12	1152ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 23:18:59	750ms	2 NS 2 A 2 MX	🔓 Insecure	View