rc66.dk DNS records

🖥️ Nameservers2 records 84ms

Nameserver	IP addresses	PTR	ASN / ISP
hal.ns.cloudflare.com	108.162.193.174 172.64.33.174 173.245.59.174 2606:4700:58::adf5:3bae 2803:f800:50::6ca2:c1ae 2a06:98c1:50::ac40:21ae	hal.ns.cloudflare.com hal.ns.cloudflare.com hal.ns.cloudflare.com hal.ns.cloudflare.com hal.ns.cloudflare.com hal.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
margot.ns.cloudflare.com	108.162.194.167 162.159.38.167 172.64.34.167 2606:4700:50::a29f:26a7 2803:f800:50::6ca2:c2a7 2a06:98c1:50::ac40:22a7	margot.ns.cloudflare.com margot.ns.cloudflare.com margot.ns.cloudflare.com margot.ns.cloudflare.com margot.ns.cloudflare.com margot.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 85ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.229	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.193.232	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 89ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rc66-dk.mail.protection.outlook.com	2a01:111:f403:ca04::d 2a01:111:f403:ca09::1 2a01:111:f403:ca09::e 2a01:111:f403:ca48::c 52.101.209.153 52.101.68.39 52.101.73.153 52.101.73.2	mail-db6pr03cu00105.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr03cu00104.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)2 records 142ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::ac43:c1e8	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:41e5	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 135ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.229,172.67.193.232 ech=AEX+DQBBWgAgACCZQBa7F6xNFza3amtqWkger9fVSfslduzX2P3LiCAHHQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::ac43:c1e8,2606:4700:3037::6815:41e5

📝 TXT Records3 records 451ms

TXT Record
google-site-verification=f_bi9XMdTQHW4KgKlHBsdqVvdmcGr73oJXGHyy-sJnU
MS=ms95565021
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (rc66.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ~all

📨 DMARC

Policy	Record (_dmarc.rc66.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:648868ae41a04@dmarc.centerasecurity.com;

📬 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.rc66.dk	90e5EF6Mxrxd-by4dF3yhbLvEtZROI3hlhTElAwPAG0
TXT	_acme-challenge.rc66.dk	umM0-JgmlJmfd54M5LXQ-bbHBGnm8qvp5RpYgZEvplE

🔗 TLSA / DANE

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

🔐 DNSSEC316ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2413564589
Primary NS (MNAME)	hal.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

84ms

A

85ms

MX

89ms

AAAA

142ms

TXT

451ms

CAA

126ms

HTTPS

135ms

TLSA

852ms

SOA

0ms

MTA-STS

164ms

DNSSEC

316ms

SRV

181ms

Total

3014ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 06:47:14	3014ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-29 08:46:37	1926ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-27 23:49:56	934ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 23:15:56	1000ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-24 21:42:06	3549ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-22 19:14:05	2120ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-19 12:21:43	8747ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-07 06:51:38	1979ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-23 10:53:29	2657ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-15 14:19:42	1359ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-29 07:43:43	1080ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-23 16:43:21	1062ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 06:30:32	844ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-19 19:49:54	3600ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 19:01:44	5878ms	2 NS 2 A 1 MX	🔒 Secure	View