r7holding.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was registered on 8 December 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.200.90.102 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by r7holding.dk. The zone is DNSSEC-signed but currently fails validation, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 193.200.90.102 | — | web9.e-studio.dk | AS62121 | Christian Ebsen ApS | 193.200.90.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | — | r7holding.dk | 193.200.90.102 | web9.e-studio.dk | AS62121 Christian Ebsen ApS |
| TXT Record |
|---|
| v=spf1 ip4:193.200.90.102 include:_spf.e-studio.dk -all |
| Policy | Record (r7holding.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:193.200.90.102 include:_spf.e-studio.dk -all |
| Policy | Record (_dmarc.r7holding.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | r7holding.dk (all on r7holding.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~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: 1/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | broken trust chain resolving 'r7holding.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2026052807 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 2023-12-08 |
| Expires | 2026-12-07 (48d) |
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 |
|---|---|---|---|
| 2026-10-09 09:00:52 | 481ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-04 09:33:41 | 396ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-28 07:32:28 | 637ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 23:18:22 | 712ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 16:54:50 | 2483ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-30 00:32:46 | 4741ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-25 23:04:29 | 1559ms | 3 NS 0 A 1 MX | 🔓 Insecure |
| 2026-06-21 08:16:41 | 738ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 16:33:31 | 1115ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 12:04:29 shown | 706ms | 3 NS 1 A 1 MX | ⚠️ Bogus |