rblstudio.dk DNS records

🖥️ Nameservers2 records 49ms

Nameserver	IP addresses	PTR	ASN / ISP
lilith.ns.cloudflare.com	108.162.194.143 162.159.38.143 172.64.34.143 2606:4700:50::a29f:268f 2803:f800:50::6ca2:c28f 2a06:98c1:50::ac40:228f	lilith.ns.cloudflare.com lilith.ns.cloudflare.com lilith.ns.cloudflare.com lilith.ns.cloudflare.com lilith.ns.cloudflare.com lilith.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
west.ns.cloudflare.com	108.162.193.247 172.64.33.247 173.245.59.247 2606:4700:58::adf5:3bf7 2803:f800:50::6ca2:c1f7 2a06:98c1:50::ac40:21f7	west.ns.cloudflare.com west.ns.cloudflare.com west.ns.cloudflare.com west.ns.cloudflare.com west.ns.cloudflare.com west.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.87.10	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.139.33	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 73ms

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
🔶 Autoconfig	172.67.139.33

🔷 AAAA Records (IPv6)2 records 62ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:8b21	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:570a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.87.10,172.67.139.33 ech=AEX+DQBBzwAgACBTSB3apXixaEI71fZoMKUzij6ilRhhH7A4KRauzohfNQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:8b21,2606:4700:3033::6815:570a

📝 TXT Records1 records 208ms

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

✉️ SPF

Policy	Record (rblstudio.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 117ms

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

🔐 DNSSEC92ms

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	2411477951
Primary NS (MNAME)	lilith.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

49ms

A

49ms

MX

73ms

AAAA

62ms

TXT

208ms

CAA

58ms

HTTPS

52ms

TLSA

117ms

SOA

0ms

MTA-STS

83ms

DNSSEC

92ms

SRV

82ms

Total

1307ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 03:20:06	1307ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-06 14:21:03	1045ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-10 04:09:43	1052ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 12:25:36	1660ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-25 00:22:03	2632ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 01:21:19	2825ms	2 NS 2 A 1 MX	🔓 Insecure	View