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.
| 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 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 104.21.45.127 |
| 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 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.45.127,172.67.214.76 ech=AEX+DQBBigAgACClcPRSYIi9pRSXEYI2Mp1rDDKFgCgesWfIc4Sj2ogUFwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:2d7f,2606:4700:3030::ac43:d64c |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (masbt.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| 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 |
| 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 |
DNS lookups: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2415060395 |
| Primary NS (MNAME) | eugene.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | WEB SOLUTIONS A/S |
| Registered | 2018-01-06 |
| Expires | 2027-01-31 (102d) |
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 |
| 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 shown | 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 | 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 |