ark-khn.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.241.66 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by arkkhn-dk0i.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 77.111.241.66 | 3600s | webcluster1.wordpresspod2-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| 🔶 Autoconfig | 77.111.241.66 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:104:16:8588:bd7e:4e9d | 3600s | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms45609397 |
| v=spf1 a:mail.ark-khn.dk include:spf.protection.outlook.com include:sendgrid.net include:_custspf.one.com -all |
| Policy | Record (ark-khn.dk) |
|---|---|
| -all (hard fail) | v=spf1 a:mail.ark-khn.dk include:spf.protection.outlook.com include:sendgrid.net include:_custspf.one.com -all |
| Policy | Record (_dmarc.ark-khn.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; adkim=s; aspf=s |
| www | 77.111.241.66 2a02:2350:5:104:16:8588:bd7e:4e9d (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network ark-khn.dk: 77.111.241.66 2a02:2350:5:104:16:8588:bd7e:4e9d (AS51468) www.ark-khn.dk: 77.111.241.66 2a02:2350:5:104:16:8588:bd7e:4e9d (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u39840743.wl244.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u39840743.wl244.sendgrid.net | RSA · ~2048 bit |
| selector2 | selector2-arkkhn-dk0i._domainkey.arkkhn.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: 5/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026060401 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 07:13:13 | 913ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 22:23:35 | 4560ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 15:31:47 | 1333ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-01 22:43:00 | 7017ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-07 00:01:55 | 9369ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 18:28:09 shown | 2390ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 06:45:52 | 911ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-16 12:51:18 | 1466ms | 2 NS 1 A 1 MX | 🔒 Secure |