rdtinvest.dk DNS records

🖥️ Nameservers2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
bruce.ns.cloudflare.com	108.162.193.77 172.64.33.77 173.245.59.77 2606:4700:58::adf5:3b4d 2803:f800:50::6ca2:c14d 2a06:98c1:50::ac40:214d	bruce.ns.cloudflare.com bruce.ns.cloudflare.com bruce.ns.cloudflare.com bruce.ns.cloudflare.com bruce.ns.cloudflare.com bruce.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
selah.ns.cloudflare.com	108.162.194.21 162.159.38.21 172.64.34.21 2606:4700:50::a29f:2615 2803:f800:50::6ca2:c215 2a06:98c1:50::ac40:2215	selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com selah.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.90.150	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.157.227	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	rdtinvest-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::a 2a01:111:f403:ca09::26 2a01:111:f403:ca09::a 52.101.68.16 52.101.68.25 52.101.73.126 52.101.73.8	mail-db4pr02cu00406.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am0pr04cu00500.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	172.67.157.227
🔶 Autoconfig	104.21.90.150

🔷 AAAA Records (IPv6)2 records 24ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:5a96	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:9de3	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 31ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.90.150,172.67.157.227 ech=AEX+DQBByQAgACBjyLikba3Vx8c+/hSkq61oFduvV4cgG79C+GctpedRTQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5a96,2606:4700:3033::ac43:9de3

📝 TXT Records2 records 173ms

TXT Record
MS=ms90006795
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (rdtinvest.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 / DANE

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

🔐 DNSSEC104ms

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	2413277651
Primary NS (MNAME)	bruce.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

27ms

A

37ms

MX

31ms

AAAA

24ms

TXT

173ms

CAA

27ms

HTTPS

31ms

TLSA

370ms

SOA

0ms

MTA-STS

51ms

DNSSEC

104ms

SRV

57ms

Total

992ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 18:27:34	992ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-26 18:11:09	10452ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-17 21:43:42	4507ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-01 12:12:55	1113ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-28 14:36:54	933ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 04:57:04	1177ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 21:01:41	3098ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-21 12:45:16	1143ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 20:53:51	1805ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-18 08:28:01	1074ms	2 NS 2 A 1 MX	🔓 Insecure	View