r2groupholding.dk is a .dk domain served by 2 nameservers (ns.dandomain.dk, ns2.dandomain.dk). It was registered on 21 November 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.111.240.135 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by r2groupholding-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, 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 |
|---|---|---|---|---|---|---|---|
| 77.111.240.135 | 3600s | webcluster8.webpod11-cph3.one.com | AS51468 | One.com A/S | 77.111.240.0/22 | 🇩🇰 Denmark | Copenhagen |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.99.157.56 |
| TXT Record |
|---|
| MS=ms91487546 |
| v=spf1 include:spf.protection.outlook.com include:spf.myhosting.dk -all |
| Policy | Record (r2groupholding.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:spf.myhosting.dk -all |
| Policy | Record (_dmarc.r2groupholding.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc_agg@vali.email |
| www CNAME | r2groupholding.dk.www.service.one.com (all on one.com) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-r2groupholding-dk._domainkey.mbsr2agro.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: 6/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.r2groupholding.dk | r2groupholding.dk.acme.service.one.com |
| Check | Result |
|---|---|
| Validation Status | ⚠️ Bogus |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | broken trust chain resolving 'r2groupholding.dk/A/IN': 127.0.0.1#53 |
| Field | Value |
|---|---|
| Serial | 2025032701 |
| Primary NS (MNAME) | ns.dandomain.dk |
| Responsible (RNAME) | hostmaster@dandomain.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2017-11-21 |
| Expires | 2027-11-30 (403d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 06:02:41 | 1064ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 14:01:46 | 1039ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-04 11:44:01 | 9979ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 22:04:54 shown | 833ms | 2 NS 1 A 1 MX | ⚠️ Bogus |
| 2026-06-19 12:50:48 | 1068ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 03:17:53 | 1098ms | 2 NS 1 A 1 MX | 🔒 Secure |