rt63.dk DNS records

🖥️ Nameservers2 records 78ms

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.
stan.ns.cloudflare.com	108.162.193.235 172.64.33.235 173.245.59.235 2606:4700:58::adf5:3beb 2803:f800:50::6ca2:c1eb 2a06:98c1:50::ac40:21eb	stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com stan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 8099ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
193.32.65.61	292s	nt-server3.resennet.dk	AS3292	TDC Holding A/S	193.32.65.0/24	🇩🇰 Denmark	—

📧 MX Records1 records 94ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mail.rt63.dk	193.32.65.36	mail01.resennet.dk	AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 1177ms

TXT Record
v=spf1 include:_spf.resennet.dk -all

✉️ SPF

Policy	Record (rt63.dk)
-all (hard fail)	v=spf1 include:_spf.resennet.dk -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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.rt63.dk	aEdvyalpwbSPKhiXhL7jBenAl0tYpvMDVO1CweUzXDM
TXT	_acme-challenge.rt63.dk	JXqFzO4IT4xUFT6bt1ejlR9mUSRRZlXuQqsKl1AvhjY

🔗 TLSA / DANE

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

🔐 DNSSEC231ms

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	2412694560
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

78ms

A

8099ms

MX

94ms

AAAA

78ms

TXT

1177ms

CAA

8091ms

HTTPS

141ms

TLSA

107ms

SOA

0ms

MTA-STS

173ms

DNSSEC

231ms

SRV

198ms

Total

9488ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 19:52:08	544ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-27 03:14:59	667ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-25 20:19:16	1085ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-22 09:28:11	1135ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-21 09:21:44	9488ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-08-08 00:47:35	1383ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-30 06:48:39	834ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-26 11:08:18	799ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 15:26:08	2869ms	2 NS 1 A 1 MX	🔓 Insecure	View