rdtinvest.dk

📜 Historical scan 2026-06-21 21:01:41  ·  ← 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   265ms
NameserverIP addressesPTRASN / 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   277ms
IPTTLPTRASNISP / OrgCIDRCountryCity
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   286ms
PriorityTTLMail ServerIP addressesPTRASN
0 300s rdtinvest-dk.mail.protection.outlook.com 2a01:111:f403:ca04::
2a01:111:f403:ca04::8
2a01:111:f403:ca04::c
2a01:111:f403:ca09::7
52.101.68.3
52.101.68.8
52.101.73.11
52.101.73.19		 mail-db3pr0202cu00100.inbound.protection.outlook.com
mail-db5pr02cu00100.inbound.protection.outlook.com
mail-db9pr02cu00204.inbound.protection.outlook.com
mail-am9pr04cu00107.inbound.protection.outlook.com
mail-db7pr03cu00403.inbound.protection.outlook.com
mail-du0pr03cu00100.inbound.protection.outlook.com
mail-am1pr04cu00103.inbound.protection.outlook.com
mail-as8pr04cu00803.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#

ServiceCNAME / IP
🔷 Autodiscover104.21.90.150
🔶 Autoconfig104.21.90.150

🔷 AAAA Records (IPv6)#

2 records   167ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3032::ac43:9de3 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3034::6815:5a96 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   292ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.90.150,172.67.157.227 ech=AEX+DQBBxQAgACBZVSLaCvXYy4/290FK6A8nVlVT08SD/iLIbWlMRz+6LwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:9de3,2606:4700:3034::6815:5a96

📝 TXT Records#

2 records   545ms
TXT Record
MS=ms90006795
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

PolicyRecord (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
www104.21.90.150 172.67.157.227 2606:4700:3030::6815:5a96 2606:4700:3033::ac43:9de3 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

453ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

289ms
FieldValue
Serial2407356984
Primary NS (MNAME)bruce.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-16 16:09:29
FieldValue
RegistrarDANDOMAIN A/S
Registered2024-01-04
Expires2027-01-03 (68d)

🔗 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#

NS
265ms
A
277ms
MX
286ms
AAAA
167ms
TXT
545ms
CAA
204ms
HTTPS
292ms
TLSA
791ms
SOA
289ms
MTA-STS
283ms
DNSSEC
453ms
SRV
325ms
Total
3098ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
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 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 shown 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
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