coreline.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 8.209.103.215 is hosted by Alibaba (US) Technology Co., Ltd. (AS45102) in Germany. Mail is handled by coreline-dk.mail.protection.outlook.com. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 8.209.103.215 | — | — | AS45102 | Alibaba (US) Technology Co., Ltd. | 8.209.96.0/20 | 🇩🇪 Germany | Frankfurt am Main |
| TXT Record |
|---|
| google-site-verification=wcXTNNqBqT4dlJYQAeCt-VMNxMCTyy2oFEtbJ8Brna4 |
| MS=ms10704137 |
| v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:mailmailmail.net -all |
| Policy | Record (coreline.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.smtp2go.com include:mailmailmail.net -all |
| Policy | Record (_dmarc.coreline.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:dmarc@coreline.dk; |
| www | 8.209.103.215 (AS45102) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-coreline-dk._domainkey.fritsche.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: 3/10 · 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 | 2026061001 |
| 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 |
|---|---|---|---|
| 2026-10-10 19:04:53 | 1521ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 07:56:49 | 1094ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 10:02:09 | 1108ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-10 08:59:30 | 1771ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 19:59:34 | 1386ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-16 18:06:48 | 1279ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 23:55:49 | 3289ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-02 00:00:28 | 1459ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:25:36 shown | 780ms | 2 NS 1 A 1 MX | 🔒 Secure |