arenholtbruun.dk

📜 Historical scan 2026-08-11 00:24:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arenholtbruun.dk is a .dk domain served by 2 nameservers (joselyn.ns.cloudflare.com, lynn.ns.cloudflare.com). It was registered on 18 February 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by arenholtbruun-dk.mail.protection.outlook.com. The zone is of unknown DNSSEC status, has no DMARC policy and has no IPv6 address. 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 60ms

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 Records#

1 records 59ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	arenholtbruun-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09::1 2a01:111:f403:ca09::6 2a01:111:f403:ca09::9 52.101.68.21 52.101.68.39 52.101.73.19 52.101.73.26	mail-dbapr03cu00100.inbound.protection.outlook.com mail-as9pr07cu00301.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr05cu01302.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 Records#

2 records 229ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-09 13:37:20

www	104.21.83.153 172.67.177.219 2606:4700:3030::6815:5399 2606:4700:3034::ac43:b1db (AS13335) (address records, no CNAME)
www vs bare domain	Different networks arenholtbruun.dk: 168.119.144.139 (AS24940) www.arenholtbruun.dk: 104.21.83.153 172.67.177.219 2606:4700:3030::6815:5399 2606:4700:3034::ac43:b1db (AS13335) (all like this)
Wildcard	No

🔎 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#

131ms

Check	Result
Validation Status	❓ Unknown
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	broken trust chain resolving 'arenholtbruun.dk/A/IN': 127.0.0.1#53

🏷️ SOA#

0ms

Field	Value
Serial	2411800196
Primary NS (MNAME)	joselyn.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 18:42:54

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2007-02-18
Expires	2030-08-31 (1406d)

📋 WHOIS#

⏱️ Lookup Timing#

60ms

44ms

59ms

AAAA

45ms

TXT

229ms

CAA

55ms

HTTPS

43ms

TLSA

123ms

SOA

0ms

MTA-STS

61ms

DNSSEC

131ms

SRV

127ms

Total

9380ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 13:37:20	1509ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-08 12:04:51	1320ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 09:42:59	2957ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-30 09:25:19	1128ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-16 04:57:30	1464ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-14 02:28:57	1155ms	2 NS 0 A 1 MX	🔓 Insecure
2026-09-03 21:14:50	625ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-30 07:49:22	1674ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-26 14:13:11	1263ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-25 11:03:54	1090ms	2 NS 0 A 1 MX	🔓 Insecure
2026-08-11 00:24:59 shown	9380ms	2 NS 0 A 1 MX	❓ Unknown
2026-08-09 15:44:30	2326ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-04 22:56:49	1345ms	2 NS 0 A 1 MX	🔓 Insecure
2026-07-02 09:51:52	1929ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-25 19:25:18	1875ms	2 NS 0 A 1 MX	🔓 Insecure
2026-06-16 12:51:38	978ms	2 NS 0 A 1 MX	🔓 Insecure