blackstone.dk is a .dk domain served by 5 nameservers (ns1.linode.com, ns2.linode.com, ns3.linode.com and 2 more). It was registered on 21 November 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 139.162.165.23 is hosted by Akamai Connected Cloud (AS63949) in Germany. Mail is handled by mail.blackstone.dk. The zone is not DNSSEC-signed, publishes a 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.linode.com | — | — | — |
| ns2.linode.com | — | — | — |
| ns3.linode.com | — | — | — |
| ns4.linode.com | — | — | — |
| ns5.linode.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 139.162.165.23 | — | shemeri5.dk | AS63949 | Akamai Connected Cloud | 139.162.0.0/16 | 🇩🇪 Germany | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.blackstone.dk | 139.162.165.23 | shemeri5.dk | AS63949 Akamai Connected Cloud |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:7e01::f03c:91ff:fe79:3c1 | — | — | AS63949 | Akamai Connected Cloud | 2a01:7e00:0:0:0:0:0:0/30 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| v=spf1 a mx ip4:109.123.109.148 ip4:139.162.165.23 include:spf.smtp2go.com include:sendgrid.net include:sparkpostmail.com -all |
| Policy | Record (blackstone.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:109.123.109.148 ip4:139.162.165.23 include:spf.smtp2go.com include:sendgrid.net include:sparkpostmail.com -all |
| Policy | Record (_dmarc.blackstone.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 139.162.165.23 2a01:7e01::f03c:91ff:fe79:3c1 (AS63949) (address records, no CNAME) |
| www vs bare domain | Same network blackstone.dk: 139.162.165.23 2a01:7e01::f03c:91ff:fe79:3c1 (AS63949) www.blackstone.dk: 139.162.165.23 2a01:7e01::f03c:91ff:fe79:3c1 (AS63949) |
| Wildcard | No |
DNS lookups: 7/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2021000001 |
| Primary NS (MNAME) | ns1.linode.com |
| Responsible (RNAME) | server5@webwapsolutions.com |
| Refresh | 14400s |
| Retry | 14400s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2018-11-21 |
| Expires | 2026-11-30 (44d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-01 03:54:59 | 1966ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:38:02 | 2795ms | 5 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 14:46:04 shown | 1010ms | 5 NS 1 A 1 MX | 🔓 Insecure |