biomass.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 January 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.100 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by biomass-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.100 | 3600s | webcluster2.webpod13-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:10b:8025:d16e:6e12:c6c7 | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 0 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| v=spf1 mx a ip4:93.90.117.1/24 ip4:93.90.115.1/24 include:spf.protection.outlook.com include:_custspf.one.com ~all |
| Policy | Record (biomass.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a ip4:93.90.117.1/24 ip4:93.90.115.1/24 include:spf.protection.outlook.com include:_custspf.one.com ~all |
| Policy | Record (_dmarc.biomass.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:1a84bddb@mxtoolbox.dmarc-report.com; ruf=mailto:1a84bddb@forensics.dmarc-report.com; fo=1 |
| www | 46.30.213.100 2a02:2350:5:10b:8025:d16e:6e12:c6c7 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network biomass.dk: 46.30.213.100 2a02:2350:5:10b:8025:d16e:6e12:c6c7 (AS51468) www.biomass.dk: 46.30.213.100 2a02:2350:5:10b:8025:d16e:6e12:c6c7 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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: 4/10 · 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 | 2026092601 |
| 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 | 2018-01-26 |
| Expires | 2027-01-31 (103d) |
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 |
|---|---|
| avv-biomass.dk | Punktum dk A/S (direct) |
| fiskegylle.dk | ONE.COM A/S |
| sheastroe.dk | Punktum dk A/S (direct) |
| sheastrø.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 23:44:05 shown | 1104ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 23:26:38 | 1292ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 03:32:50 | 930ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 11:14:25 | 917ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-22 10:27:41 | 2239ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 12:35:52 | 1269ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 11:21:34 | 949ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 14:38:57 | 2658ms | 2 NS 1 A 1 MX | 🔒 Secure |