rc3d.dk DNS records

🖥️ Nameservers2 records 32ms

Nameserver	IP addresses	PTR	ASN / ISP
dahlia.ns.cloudflare.com	108.162.192.89 172.64.32.89 173.245.58.89 2606:4700:50::adf5:3a59 2803:f800:50::6ca2:c059 2a06:98c1:50::ac40:2059	dahlia.ns.cloudflare.com dahlia.ns.cloudflare.com dahlia.ns.cloudflare.com dahlia.ns.cloudflare.com dahlia.ns.cloudflare.com dahlia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dom.ns.cloudflare.com	108.162.193.157 172.64.33.157 173.245.59.157 2606:4700:58::adf5:3b9d 2803:f800:50::6ca2:c19d 2a06:98c1:50::ac40:219d	dom.ns.cloudflare.com dom.ns.cloudflare.com dom.ns.cloudflare.com dom.ns.cloudflare.com dom.ns.cloudflare.com dom.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.66.163	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.205.112	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records

📧

No MX records found

🔷 AAAA Records (IPv6)2 records 31ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:cd70	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:42a3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.66.163,172.67.205.112 ech=AEX+DQBBTAAgACCauk+cc3c7hdEYGHKp9jDfKiQxLE1kjlr+Bg+h14waEwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:cd70,2606:4700:3036::6815:42a3

📝 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

🔏 ACME Challenge

Type	Name	Value
TXT	_acme-challenge.rc3d.dk	4fb0ES590MaTG233Ek8OT7YQP5zFPgQvVKnuOq8oufY
TXT	_acme-challenge.rc3d.dk	UIOtKgRuLFd5_oUJSYKQFchXlIxPc8-kU9O702TF_O0

🔗 TLSA / DANE

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

🔐 DNSSEC108ms

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	2413402219
Primary NS (MNAME)	dahlia.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

30ms

MX

26ms

AAAA

31ms

TXT

142ms

CAA

33ms

HTTPS

37ms

TLSA

42ms

SOA

0ms

MTA-STS

59ms

DNSSEC

108ms

SRV

53ms

Total

1020ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 18:00:41	1020ms	2 NS 2 A 0 MX	🔓 Insecure	View
2026-08-26 16:52:05	975ms	2 NS 1 A 0 MX	🔓 Insecure	View
2026-08-25 03:43:01	1628ms	2 NS 1 A 0 MX	🔓 Insecure	View
2026-08-20 23:33:33	4956ms	2 NS 1 A 0 MX	🔓 Insecure	View
2026-08-13 20:31:55	2126ms	2 NS 1 A 0 MX	🔓 Insecure	View
2026-08-07 15:59:29	1879ms	2 NS 1 A 0 MX	🔓 Insecure	View
2026-07-31 08:50:31	8515ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-28 03:53:24	980ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-27 03:45:50	811ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-26 02:35:37	576ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-25 02:19:38	925ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-24 01:35:04	662ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-22 22:33:59	24667ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-21 06:46:36	8605ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-20 03:28:35	615ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-18 13:28:20	8652ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-17 06:25:13	770ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-13 04:52:26	2741ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-10 06:14:32	814ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-08 13:48:46	1036ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-06 13:50:42	913ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-04 23:59:14	650ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-07-03 11:32:30	497ms	1 NS 0 A 0 MX	❓ Unknown	View
2026-06-24 23:34:07	3728ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 11:37:54	1180ms	0 NS 0 A 0 MX	❓ Unknown	View