mbu.dk

📜 Historical scan 2026-09-06 09:16:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mbu.dk is a .dk domain served by 3 nameservers (ns.nerdonline.dk, ns2.nerdonline.dk, ns3.nerdonline.dk). It was registered on 17 March 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.236.62.147 is hosted by Google LLC (AS396982) in United States. Mail is handled by mbu-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

3 records 71ms

Nameserver	IP addresses	PTR	ASN / ISP
ns.nerdonline.dk	167.233.0.169	mailgw1.nerdonline.dk	AS24940 Hetzner Online GmbH
ns2.nerdonline.dk	95.216.155.89	hel01.nerdonline.dk	AS24940 Hetzner Online GmbH
ns3.nerdonline.dk	167.233.0.167	ns3.nerdonline.dk	AS24940 Hetzner Online GmbH

🌍 A Records#

1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.236.62.147	1800s	147.62.236.23.bc.googleusercontent.com	AS396982	Google LLC	23.236.48.0/20	🇺🇸 United States	Council Bluffs

📧 MX Records#

1 records 62ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	1800s	mbu-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::c 2a01:111:f403:ca04::d 2a01:111:f403:ca04::e 52.101.103.36 52.101.68.32 52.101.73.22 52.101.73.8	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am7pr05cu00106.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	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 394ms

TXT Record
MS=ms46386649
v=spf1 a mx a:mail.winkas.net include:spf.protection.outlook.com include:mail.winkas.net -all

✉️ SPF#

Policy	Record (mbu.dk)
-all (hard fail)	v=spf1 a mx a:mail.winkas.net include:spf.protection.outlook.com include:mail.winkas.net -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 2026-10-08 20:19:15

www CNAME	www.135.wixdns.net (all on wixdns.net) → 34.149.87.45 (AS396982)
www vs bare domain	Same network mbu.dk: 23.236.62.147 (AS396982) www.mbu.dk: 34.149.87.45 (AS396982)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 5/10 · policy: -all

error include:mail.winkas.net has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

2074ms

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	1530854909
Primary NS (MNAME)	ns.nerdonline.dk
Responsible (RNAME)	hostmaster@nerdonline.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	38400s

📋 Registration#

WHOIS fetched 2026-10-17 22:17:48

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-03-17
Expires	2027-03-31 (163d)

🔗 Same registrant#

0 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

71ms

54ms

62ms

AAAA

64ms

TXT

394ms

CAA

60ms

HTTPS

64ms

TLSA

313ms

SOA

0ms

MTA-STS

90ms

DNSSEC

2074ms

SRV

112ms

Total

2842ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 20:19:15	1494ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-30 18:17:12	846ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-06 09:16:00 shown	2842ms	3 NS 1 A 1 MX	🔓 Insecure
2026-08-27 18:22:31	3246ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-27 14:37:26	1197ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-25 11:49:33	1112ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-25 03:20:46	1888ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-24 09:59:49	1920ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-23 11:05:54	1159ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 12:56:33	909ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 02:32:20	3145ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-17 23:59:28	885ms	3 NS 1 A 1 MX	🔓 Insecure