olisan.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.223.235.80 is hosted by DLX A/S (AS47527) in Denmark. Mail is handled by mx1.spamfri.dk, mx2.spamfri.dk. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 91.223.235.80 | 14400s | imali.pil.dk | AS47527 | DLX A/S | 91.223.235.0/24 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 14400s | mx1.spamfri.dk | 195.242.131.16 2001:67c:564:fffd::1001 |
mx1.spamfri.dk mx1.spamfri.dk |
AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS |
| 20 | 14400s | mx2.spamfri.dk | 193.200.91.109 2001:67c:564:fffd::2001 |
mx2.spamfri.dk mx2.spamfri.dk |
AS62121 Christian Ebsen ApS AS62121 Christian Ebsen ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.242.131.2 |
| 🔶 Autoconfig | 195.242.131.2 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| facebook-domain-verification=u996fkk7axf841woeh8rfi0riq69ci |
| google-site-verification=rnYx27JNZt3IxAIizMJgh5VUq-7VeRoVcRcdw8jteW4 |
| klaviyo-site-verification=U3VSGN |
| v=spf1 include:_spf.e-studio.dk include:send.heysender.com include:spf.shoporama.dk include:servers.mcsv.net -all |
| Policy | Record (olisan.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.e-studio.dk include:send.heysender.com include:spf.shoporama.dk include:servers.mcsv.net -all |
| Policy | Record (_dmarc.olisan.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none;sp=none;adkim=r;aspf=s;pct=100;fo=0;rf=afrf;ri=86400 |
| www CNAME | olisan.dk (all on olisan.dk) → 91.223.235.80 (AS47527) |
| 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: 6/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.olisan.dk | EkkXeKWrEd6BETZCa0JJBmPQrzRfN6GNFfXeI6xGf-8 |
| 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… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081701 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | nb@e-studio.dk |
| Refresh | 3600s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-21 15:09:55 | 626ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-09-15 20:54:15 | 1185ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-26 00:01:43 | 626ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-18 12:59:11 shown | 1644ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-22 08:00:39 | 1125ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-21 05:59:43 | 1235ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-17 23:58:21 | 1142ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-07-16 13:42:05 | 1020ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-30 01:25:36 | 677ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 12:22:57 | 1717ms | 3 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-23 09:06:27 | 1125ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 17:07:27 | 999ms | 3 NS 1 A 2 MX | 🔒 Secure |