duckertholding.dk DNS records

🖥️ Nameservers2 records 183ms

Nameserver	IP addresses	PTR	ASN / ISP
alfred.ns.cloudflare.com	108.162.195.131 162.159.44.131 172.64.35.131 2606:4700:58::a29f:2c83 2803:f800:50::6ca2:c383 2a06:98c1:50::ac40:2383	alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
carrera.ns.cloudflare.com	108.162.194.231 162.159.38.231 172.64.34.231 2606:4700:50::a29f:26e7 2803:f800:50::6ca2:c2e7 2a06:98c1:50::ac40:22e7	carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com carrera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records1 records 203ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	duckertholding-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::2 2a01:111:f403:ca04::d 2a01:111:f403:ca09::e 52.101.68.25 52.101.73.153 52.101.73.19 52.101.73.2	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du2pr03cu00102.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.40

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 467ms

TXT Record
MS=ms38688949
v=spf1 include:spf.protection.outlook.com ~all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.duckertholding.dk)
p=reject	v=DMARC1; p=reject; adkim=r; aspf=r;

📬 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)

🔐 DNSSEC305ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA183ms

Field	Value
Serial	2403359201
Primary NS (MNAME)	alfred.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

183ms

A

209ms

MX

203ms

AAAA

215ms

TXT

467ms

CAA

184ms

HTTPS

226ms

TLSA

299ms

SOA

183ms

MTA-STS

205ms

DNSSEC

305ms

SRV

233ms

Total

2105ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 21:34:34	9895ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-26 09:59:35	1501ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-23 11:40:01	4784ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-24 22:45:36	9138ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-02 19:02:12	10203ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-26 05:58:46	1420ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-24 14:28:54	2105ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-22 17:13:27	2130ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-22 06:11:36	913ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 04:55:41	758ms	2 NS 0 A 1 MX	🔓 Insecure	View