rt16.dk DNS records

🖥️ Nameservers2 records 28ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dan.ns.cloudflare.com	108.162.193.108 172.64.33.108 173.245.59.108 2606:4700:58::adf5:3b6c 2803:f800:50::6ca2:c16c 2a06:98c1:50::ac40:216c	dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com dan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 22ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.18.83	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.181.64	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 29ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:b540	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:1253	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 25ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.18.83,172.67.181.64 ech=AEX+DQBBJAAgACCgJsp1PyUgRagXBDtA/AIREEggoQoisT4ZAfNS7dWLBAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:b540,2606:4700:3036::6815:1253

📝 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

🔗 TLSA / DANE

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

🔐 DNSSEC106ms

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	2413471065
Primary NS (MNAME)	barbara.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

28ms

A

22ms

MX

28ms

AAAA

29ms

TXT

149ms

CAA

25ms

HTTPS

25ms

TLSA

40ms

SOA

0ms

MTA-STS

41ms

DNSSEC

106ms

SRV

48ms

Total

485ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 01:28:40	485ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-28 04:13:25	624ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-24 18:14:19	16578ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-21 11:13:05	1506ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-09 09:46:27	9842ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-04 20:43:58	923ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-07-02 11:49:48	1453ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-24 13:08:58	2062ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-06-17 22:54:16	822ms	2 NS 2 A 0 MX	🔓 Insecure	View