0ls3n.dk DNS records

🖥️ Nameservers2 records 79ms

Nameserver	IP addresses	PTR	ASN / ISP
major.ns.cloudflare.com	108.162.193.241 172.64.33.241 173.245.59.241 2606:4700:58::adf5:3bf1 2803:f800:50::6ca2:c1f1 2a06:98c1:50::ac40:21f1	major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com major.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
serena.ns.cloudflare.com	108.162.192.220 172.64.32.220 173.245.58.220 2606:4700:50::adf5:3adc 2803:f800:50::6ca2:c0dc 2a06:98c1:50::ac40:20dc	serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com serena.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 122ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.23.55	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.209.56	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 141ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	104.21.23.55
🔶 Autoconfig	188.114.96.3

🔷 AAAA Records (IPv6)2 records 94ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:d138	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3031::6815:1737	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 97ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.23.55,172.67.209.56 ech=AEX+DQBB0gAgACCWqNzldRWGJxxyDdj9ZKlO5jl4DpUWwjyYc+Nu0s9tKQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d138,2606:4700:3031::6815:1737

📝 TXT Records1 records 357ms

TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF

Policy	Record (0ls3n.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -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 / DANE2 records 140ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC287ms

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	2413072878
Primary NS (MNAME)	major.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

79ms

A

122ms

MX

141ms

AAAA

94ms

TXT

357ms

CAA

94ms

HTTPS

97ms

TLSA

140ms

SOA

0ms

MTA-STS

1886ms

DNSSEC

287ms

SRV

204ms

Total

3781ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-24 18:45:04	3781ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-22 14:09:20	7255ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-19 05:12:23	3285ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-21 21:58:36	1368ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 03:27:07	3941ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 14:38:01	1153ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 15:04:14	587ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 01:07:19	680ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 08:24:23	803ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 12:33:42	1315ms	2 NS 2 A 1 MX	🔓 Insecure	View