xanadu.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 29 June 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 103.16.198.22 is hosted by PT. Jupiter Jala Arta (AS131775) in Indonesia. Mail is handled by mail.xanadu.dk, mx4.spamfri.dk and 3 more. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 103.16.198.22 | 3600s | ip-198-22.jalanet.co.id | AS131775 | PT. Jupiter Jala Arta | 103.16.198.0/23 | 🇮🇩 Indonesia | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | atollon.hostingnet.dk → 193.200.90.180 |
| 🔶 Autoconfig | atollon.hostingnet.dk → 193.200.90.180 |
| TXT Record |
|---|
| v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk +include:_spf.hostingnet.dk -all |
| Policy | Record (xanadu.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +ip4:193.200.90.180 include:_spf.e-studio.dk +include:_spf.hostingnet.dk -all |
| Policy | Record (_dmarc.xanadu.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none; aspf=s |
| www CNAME | xanadu.dk (all on xanadu.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| 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: 4/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.xanadu.dk | fcanBT0_01fdApY-dQosejLdkto6wIaC9iIRn_rPtgY |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.spamfri.dk | DANE-EE · SPKI · SHA-256 | 884451547A03D0AC2F628D943839BAA6… |
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| SMTP _25._tcp.mx4.spamfri.dk | DANE-EE · SPKI · SHA-256 | 4EE743A99328AEF5142706CA5FD3AD61… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026092303 |
| 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 | Punktum dk A/S (direct) |
| Registered | 1999-06-29 |
| Expires | 2027-06-30 (250d) |
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 |
|---|---|---|---|
| 2026-09-24 01:30:39 shown | 4770ms | 3 NS 1 A 5 MX | 🔓 Insecure |
| 2026-07-25 04:09:13 | 1584ms | 3 NS 1 A 5 MX | 🔓 Insecure |
| 2026-06-17 23:47:33 | 2265ms | 3 NS 1 A 5 MX | 🔓 Insecure |