markholt-partners.dk

📜 Historical scan 2026-09-25 16:33:54 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

markholt-partners.dk is a .dk domain served by 2 nameservers (isla.ns.cloudflare.com, lloyd.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.65.139 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by markholtpartners-dk02b.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 33ms

Nameserver	IP addresses	PTR	ASN / ISP
isla.ns.cloudflare.com	108.162.192.119 172.64.32.119 173.245.58.119 2606:4700:50::adf5:3a77 2803:f800:50::6ca2:c077 2a06:98c1:50::ac40:2077	isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com isla.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lloyd.ns.cloudflare.com	108.162.193.197 172.64.33.197 173.245.59.197 2606:4700:58::adf5:3bc5 2803:f800:50::6ca2:c1c5 2a06:98c1:50::ac40:21c5	lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.ns.cloudflare.com lloyd.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 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.65.139	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.190.154	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	markholtpartners-dk02b.mail.protection.outlook.com	2a01:111:f403:c967::a 2a01:111:f403:ca04::a 2a01:111:f403:ca21::8 2a01:111:f403:ca21::a 52.101.103.137 52.101.68.10 52.101.68.21 52.101.73.123	mail-cpjpr05cu00102.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-maspr04cu00102.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am6pr02cu00203.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
🔶 Autoconfig	104.21.65.139

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:418b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:be9a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 41ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.65.139,172.67.190.154 ech=AEX+DQBBOwAgACCzDzJzMsljjSqNIJS6VqMe9icCjkWe3EqSyqmWQkhNIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:418b,2606:4700:3033::ac43:be9a

📝 TXT Records#

2 records 174ms

TXT Record
MS=ms66417747
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (markholt-partners.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 2026-10-22 17:59:14

www	104.21.65.139 172.67.190.154 2606:4700:3030::6815:418b 2606:4700:3033::ac43:be9a (AS13335) (address records, no CNAME)
www vs bare domain	Same network markholt-partners.dk: 104.21.65.139 172.67.190.154 2606:4700:3030::6815:418b 2606:4700:3033::ac43:be9a (AS13335) www.markholt-partners.dk: 104.21.65.139 172.67.190.154 2606:4700:3030::6815:418b 2606:4700:3033::ac43:be9a (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-markholtpartners-dk02b._domainkey.holmmarcher1.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

116ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2415777545
Primary NS (MNAME)	isla.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

33ms

41ms

33ms

AAAA

38ms

TXT

174ms

CAA

38ms

HTTPS

41ms

TLSA

369ms

SOA

0ms

MTA-STS

50ms

DNSSEC

116ms

SRV

105ms

Total

1405ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 17:59:14	592ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 11:25:33	1288ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 16:33:54 shown	1405ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 16:21:50	1125ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-08 14:36:12	1572ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 20:10:00	1365ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-24 19:07:31	2360ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-26 21:47:51	1224ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 14:02:55	1708ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 15:11:01	1122ms	2 NS 2 A 1 MX	❓ Unknown