optimal-revision.dk is a .dk domain served by 2 nameservers (ns1.oneoffice.dk, ns2.oneoffice.dk). It was registered on 5 February 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.213.173 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by optimalrevision-dk01i.mail.protection.outlook.com. 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 |
|---|---|---|---|---|---|---|---|
| 46.30.213.173 | 3600s | webcluster2.webpod14-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms99979514 |
| v=spf1 include:spf.protection.outlook.com ip4:87.61.250.2 ip4:85.119.129.3 ip4:85.235.240.119 ip4:85.235.240.102 ip4:85.235.240.99 ip4:85.235.240.98 ip4:62.243.225.254 ip4:152.115.60.216 -all |
| Policy | Record (optimal-revision.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com ip4:87.61.250.2 ip4:85.119.129.3 ip4:85.235.240.119 ip4:85.235.240.102 ip4:85.235.240.99 ip4:85.235.240.98 ip4:62.243.225.254 ip4:152.115.60.216 -all |
| Policy | Record (_dmarc.optimal-revision.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; pct=100; rua=mailto:re+xxlegpnnhxo@dmarc.postmarkapp.com; sp=none; aspf=r; |
| www | 46.30.213.173 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector2 | selector2-optimalrevision-dk01i._domainkey.optimalrevision.onmicrosoft.com | RSA · ~1024 bit below 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| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.optimal-revision.dk | optimal-revision.dk.acme.service.one.com |
| 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 | 2024061702 |
| Primary NS (MNAME) | ns1.oneoffice.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2004-02-05 |
| Expires | 2034-02-28 (2680d) |
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).
| Domain | Registrar |
|---|---|
| op10mal.dk | DANDOMAIN A/S |
| optimal.dk | ONE.COM A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-08-26 13:09:49 shown | 1083ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:43:05 | 1516ms | 2 NS 1 A 1 MX | 🔓 Insecure |