rdtinvest.dk

📜 Historical scan 2026-08-26 18:11:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rdtinvest.dk is a .dk domain served by 2 nameservers (bruce.ns.cloudflare.com, selah.ns.cloudflare.com). It was registered on 4 January 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.90.150 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by rdtinvest-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 45ms

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 Records#

2 records 64ms

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 Records#

1 records 74ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	rdtinvest-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::8 2a01:111:f403:ca09::5 2a01:111:f403:ca09::7 52.101.68.27 52.101.68.3 52.101.73.30 52.101.73.6	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am6pr04cu00306.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 69ms

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 Records#

1 records 72ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.90.150,172.67.157.227 ech=AEX+DQBBKgAgACAvQqH0GYmbu3KvoVqKt+Ei4tgB0R7OrKySEEIuEA2POgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:5a96,2606:4700:3033::ac43:9de3

📝 TXT Records#

2 records 326ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 15:45:37

www	104.21.90.150 172.67.157.227 2606:4700:3030::6815:5a96 2606:4700:3033::ac43:9de3 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rdtinvest.dk: 104.21.90.150 172.67.157.227 2606:4700:3030::6815:5a96 2606:4700:3033::ac43:9de3 (AS13335) www.rdtinvest.dk: 104.21.90.150 172.67.157.227 2606:4700:3030::6815:5a96 2606:4700:3033::ac43:9de3 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.rdtinvest.dk	fUctEOmEt3B79BelRSUrgBUWR16tQGu4ZsgB5W3i5PY
TXT	_acme-challenge.rdtinvest.dk	ojoOAMKW6pzvvOsiNC-ccLT2zrMw-HTo4Il_mp-f0uU

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9086ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2413144036
Primary NS (MNAME)	bruce.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-16 16:09:29

Field	Value
Registrar	DANDOMAIN A/S
Registered	2024-01-04
Expires	2027-01-03 (67d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

45ms

64ms

74ms

AAAA

69ms

TXT

326ms

CAA

61ms

HTTPS

72ms

TLSA

775ms

SOA

0ms

MTA-STS

86ms

DNSSEC

9086ms

SRV

126ms

Total

10452ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 15:45:37	3809ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 16:53:11	1344ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 12:22:42	899ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-07 02:55:59	3172ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 18:27:34	992ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 18:11:09 shown	10452ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-17 21:43:42	4507ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-01 12:12:55	1113ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-28 14:36:54	933ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 04:57:04	1177ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 21:01:41	3098ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 12:45:16	1143ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 20:53:51	1805ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 08:28:01	1074ms	2 NS 2 A 1 MX	🔓 Insecure