erto.dk is a .dk domain served by 2 nameservers (ns01.leehansenit.net, ns02.leehansenit.net). It was registered on 9 July 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 168.119.3.52 is hosted by Hetzner Online GmbH (AS24940) in Germany. Mail is handled by erto-dk.mail.protection.outlook.com. 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 |
|---|---|---|---|
| ns01.leehansenit.net | 88.99.120.238 | ns1.dnshotel.dk | AS24940 Hetzner Online GmbH |
| ns02.leehansenit.net | 94.130.170.39 | ns2.dnshotel.dk | AS24940 Hetzner Online GmbH |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 168.119.3.52 | 3600s | web01.leehansenit.net | AS24940 | Hetzner Online GmbH | 168.119.0.0/16 | 🇩🇪 Germany | Falkenstein |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.97.159.216 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a01:4f8:242:4e0b::2 | 3600s | web01.leehansenit.net | AS24940 | Hetzner Online GmbH | 2a01:4f8:0:0:0:0:0:0/31 | 🇩🇪 Germany | Falkenstein |
| TXT Record |
|---|
| v=spf1 ip4:168.119.3.52 include:spf.leehansenit.net include:spf.protection.outlook.com -all |
| Policy | Record (erto.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:168.119.3.52 include:spf.leehansenit.net include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.erto.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www CNAME | erto.dk (all on erto.dk) |
| www vs bare domain | Same network erto.dk: 168.119.3.52 2a01:4f8:242:4e0b::2 (AS24940) www.erto.dk: 168.119.3.52 2a01:4f8:242:4e0b::2 (AS24940) |
| 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: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.erto.dk | 8TRXPmxVj77a1soqjv6wwj0BjW9_IQOsklt9irqsS_I |
| 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 | 2025080502 |
| Primary NS (MNAME) | ns01.leehansenit.net |
| Responsible (RNAME) | info@leehansen.it |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2003-07-09 |
| Expires | 2027-07-31 (287d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-28 00:41:09 | 9875ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-15 04:21:52 | 6421ms | 2 NS 1 A 0 MX | 🔓 Insecure |
| 2026-08-09 17:35:27 | 9422ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-23 00:10:04 | 33104ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-20 09:03:11 | 14010ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-19 03:25:39 | 5551ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 09:50:05 shown | 1003ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-20 20:34:40 | 2665ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 08:16:03 | 615ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 08:15:45 | 1199ms | 2 NS 1 A 1 MX | 🔓 Insecure |