masbt.dk

📜 Historical scan 2026-09-12 17:13:55 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

masbt.dk is a .dk domain served by 2 nameservers (eugene.ns.cloudflare.com, wren.ns.cloudflare.com). It was registered on 6 January 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.45.127 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by masbt-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 51ms

Nameserver	IP addresses	PTR	ASN / ISP
eugene.ns.cloudflare.com	108.162.195.72 162.159.44.72 172.64.35.72 2606:4700:58::a29f:2c48 2803:f800:50::6ca2:c348 2a06:98c1:50::ac40:2348	eugene.ns.cloudflare.com eugene.ns.cloudflare.com eugene.ns.cloudflare.com eugene.ns.cloudflare.com eugene.ns.cloudflare.com eugene.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
wren.ns.cloudflare.com	108.162.194.141 162.159.38.141 172.64.34.141 2606:4700:50::a29f:268d 2803:f800:50::6ca2:c28d 2a06:98c1:50::ac40:228d	wren.ns.cloudflare.com wren.ns.cloudflare.com wren.ns.cloudflare.com wren.ns.cloudflare.com wren.ns.cloudflare.com wren.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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.45.127	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.214.76	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	masbt-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca38::a 2a01:111:f403:ca3c::6 52.101.103.140 52.101.185.24 52.101.68.21 52.101.91.162	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-wa4pr05cu00102.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-matpr04cu00302.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
🔶 Autoconfig	104.21.45.127

🔷 AAAA Records (IPv6)#

2 records 29ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:2d7f	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3030::ac43:d64c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 40ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.45.127,172.67.214.76 ech=AEX+DQBBIQAgACBN6LO5PlQrAm/1+R9e1CoaMwApgVZDefs3uygxjsFWdQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:2d7f,2606:4700:3030::ac43:d64c

📝 TXT Records#

1 records 154ms

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

✉️ SPF#

Policy	Record (masbt.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 2026-10-08 20:18:30

www	188.114.96.1 188.114.97.1 2606:4700:3030::6815:2d7f 2606:4700:3030::ac43:d64c (AS13335) (address records, no CNAME)
www vs bare domain	Same network masbt.dk: 188.114.96.1 188.114.97.1 2606:4700:3030::6815:2d7f 2606:4700:3030::ac43:d64c (AS13335) www.masbt.dk: 188.114.96.1 188.114.97.1 2606:4700:3030::6815:2d7f 2606:4700:3030::ac43:d64c (AS13335)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.masbt.dk	KLAh-AXX4XNF2UWq71soVbKn9qEDyjSzyyyGmFiWcMk
TXT	_acme-challenge.masbt.dk	NPErS-KMY0BXVaAjLJ93wQmMvmY6ty_rUDTye5zKDgg

🔗 TLSA / DANE#

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

🔐 DNSSEC#

108ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

0ms

Field	Value
Serial	2414578204
Primary NS (MNAME)	eugene.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-19 21:48:09

Field	Value
Registrar	WEB SOLUTIONS A/S
Registered	2018-01-06
Expires	2027-01-31 (102d)

🔗 Same registrant#

1 domain

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).

Domain	Registrar
masinv.dk	WEB SOLUTIONS A/S

📋 WHOIS#

⏱️ Lookup Timing#

51ms

30ms

AAAA

29ms

TXT

154ms

CAA

31ms

HTTPS

40ms

TLSA

646ms

SOA

0ms

MTA-STS

59ms

DNSSEC

108ms

SRV

68ms

Total

1313ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 15:55:36	1004ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-30 15:37:41	911ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-29 17:52:13	857ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-27 05:10:52	1219ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-19 18:37:32	2023ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-12 17:13:55 shown	1313ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-08 19:35:19	2109ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-31 18:32:53	2278ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-14 17:35:30	3844ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-27 17:35:56	49679ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-22 13:53:27	11043ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-17 22:28:07	3455ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-29 02:16:29	1595ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 08:00:15	1186ms	2 NS 2 A 1 MX	❓ Unknown
2026-06-20 07:41:46	851ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 17:15:47	13667ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 16:55:06	1229ms	2 NS 2 A 1 MX	🔒 Secure