duckertholding.dk DNS records

🖥️ Nameservers2 records 52ms

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 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	duckertholding-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::8 2a01:111:f403:ca04::e 2a01:111:f403:ca48::8 52.101.68.10 52.101.73.123 52.101.73.30 52.101.73.4	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 210ms

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)

🔐 DNSSEC9088ms

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

🏷️ SOA0ms

Field	Value
Serial	2412906378
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

52ms

A

59ms

MX

43ms

AAAA

52ms

TXT

210ms

CAA

49ms

HTTPS

59ms

TLSA

417ms

SOA

0ms

MTA-STS

61ms

DNSSEC

9088ms

SRV

87ms

Total

9895ms

🕐 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