arenholtbruun.dk DNS records

🖥️ Nameservers2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
joselyn.ns.cloudflare.com	108.162.194.43 162.159.38.43 172.64.34.43 2606:4700:50::a29f:262b 2803:f800:50::6ca2:c22b 2a06:98c1:50::ac40:222b	joselyn.ns.cloudflare.com joselyn.ns.cloudflare.com joselyn.ns.cloudflare.com joselyn.ns.cloudflare.com joselyn.ns.cloudflare.com joselyn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lynn.ns.cloudflare.com	108.162.193.201 172.64.33.201 173.245.59.201 2606:4700:58::adf5:3bc9 2803:f800:50::6ca2:c1c9 2a06:98c1:50::ac40:21c9	lynn.ns.cloudflare.com lynn.ns.cloudflare.com lynn.ns.cloudflare.com lynn.ns.cloudflare.com lynn.ns.cloudflare.com lynn.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 25ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	arenholtbruun-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::d 2a01:111:f403:ca09::5 2a01:111:f403:ca48::a 52.101.68.36 52.101.73.145 52.101.73.2 52.101.73.8	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-as9pr07cu00302.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	172.67.177.219

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 137ms

TXT Record
MS=ms40642869
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (arenholtbruun.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)

🔐 DNSSEC103ms

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	2413519595
Primary NS (MNAME)	joselyn.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

31ms

A

26ms

MX

25ms

AAAA

31ms

TXT

137ms

CAA

24ms

HTTPS

27ms

TLSA

719ms

SOA

0ms

MTA-STS

61ms

DNSSEC

103ms

SRV

49ms

Total

1674ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 07:49:22	1674ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-26 14:13:11	1263ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-25 11:03:54	1090ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-11 00:24:59	9380ms	2 NS 0 A 1 MX	❓ Unknown	View
2026-08-09 15:44:30	2326ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-04 22:56:49	1345ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-02 09:51:52	1929ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-25 19:25:18	1875ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-16 12:51:38	978ms	2 NS 0 A 1 MX	🔓 Insecure	View