derch.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 January 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.123 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by derch-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns01.one.com | — | — | — |
| ns02.one.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 46.30.215.123 | — | webcluster2.webpod16-cph3.one.com | AS51468 | One.com A/S | 46.30.208.0/21 | 🇩🇰 Denmark | Copenhagen |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:111:80dd:4f9:11b8:9532 | — | — | AS51468 | One.com A/S | 2a02:2350:0:0:0:0:0:0/32 | 🇩🇰 Denmark | Copenhagen |
| TXT Record |
|---|
| MS=ms33399296 |
| P-MW9eyVLXXR |
| v=spf1 include:spf.protection.outlook.com include:spf.permido.com ~all |
| Policy | Record (derch.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com include:spf.permido.com ~all |
| Policy | Record (_dmarc.derch.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:dmarc@bittechit.uriports.com; ruf=mailto:dmarc@bittechit.uriports.com; fo=1:d:s |
| www | 46.30.215.123 2a02:2350:5:111:80dd:4f9:11b8:9532 (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network derch.dk: 46.30.215.123 2a02:2350:5:111:80dd:4f9:11b8:9532 (AS51468) www.derch.dk: 46.30.215.123 2a02:2350:5:111:80dd:4f9:11b8:9532 (AS51468) |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-derch-dk._domainkey.derchdk.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-derch-dk._domainkey.derchdk.onmicrosoft.com | 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: 2/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026041901 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2024-01-12 |
| Expires | 2027-01-11 (85d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 19:29:16 | 1331ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-07 00:41:38 | 1179ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-10-03 16:16:45 | 895ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 01:14:25 | 814ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-08 20:31:49 | 1833ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-27 23:34:52 | 1181ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-17 01:33:59 | 5475ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-28 20:38:41 | 1142ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-28 12:20:13 | 940ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 13:50:54 | 915ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 02:05:53 shown | 549ms | 2 NS 1 A 1 MX | 🔓 Insecure |