best2business.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 18 January 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 65.21.255.215 is hosted by Hetzner Online GmbH (AS24940) in Finland. Mail is handled by mx.zoho.com, mx2.zoho.com. The zone is DNSSEC-signed and validates, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 65.21.255.215 | — | static.215.255.21.65.clients.your-server.de | AS24940 | Hetzner Online GmbH | 65.21.0.0/16 | 🇫🇮 Finland | — |
| TXT Record |
|---|
| v=spf1 include:zoho.com ~all |
| zoho-verification=zb15161833.zmverify.zoho.com |
| Policy | Record (best2business.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:zoho.com ~all |
| Policy | Record (_dmarc.best2business.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:info@best2business.dk |
| www | 104.21.21.67 172.67.196.207 2606:4700:3035::6815:1543 2606:4700:3036::ac43:c4cf (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network best2business.dk: 104.21.21.67 172.67.196.207 2606:4700:3035::6815:1543 2606:4700:3036::ac43:c4cf (AS13335) www.best2business.dk: 104.21.21.67 172.67.196.207 2606:4700:3035::6815:1543 2606:4700:3036::ac43:c4cf (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u20175217.wl218.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u20175217.wl218.sendgrid.net | RSA · ~1024 bit below 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.
DNS lookups: 5/10 · 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 | 2026032401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2013-01-18 |
| Expires | 2027-01-31 (96d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 12:50:43 | 1244ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-10-08 10:12:59 | 1401ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-30 07:22:55 | 1000ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-26 00:19:29 | 769ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-22 18:03:34 | 1751ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-09 06:03:33 | 3602ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-07 22:06:11 | 2261ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-06 13:38:12 | 1262ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-03 02:13:35 | 13759ms | 2 NS 0 A 0 MX | 🔒 Secure |
| 2026-06-16 14:23:38 shown | 893ms | 2 NS 1 A 2 MX | 🔒 Secure |