concreto.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 14 February 2007 (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 concreto-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 46.30.215.123 | 3600s | webcluster2.webpod16-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 |
| 🔶 Autoconfig | 46.30.215.123 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a02:2350:5:111:80dd:d698:ee7:645c | 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 |
|---|
| v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all |
| Policy | Record (concreto.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all |
| www | 46.30.215.123 2a02:2350:5:111:80dd:d698:ee7:645c (AS51468) (address records, no CNAME) |
| www vs bare domain | Same network concreto.dk: 46.30.215.123 2a02:2350:5:111:80dd:d698:ee7:645c (AS51468) www.concreto.dk: 46.30.215.123 2a02:2350:5:111:80dd:d698:ee7:645c (AS51468) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 2/10 · 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 | 2026070505 |
| 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 | Punktum dk A/S (direct) |
| Registered | 2007-02-14 |
| Expires | 2027-02-28 (132d) |
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 |
|---|---|---|---|
| 2026-10-07 17:07:39 | 1333ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 22:17:38 | 928ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 16:12:47 | 731ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-09 08:08:03 | 1181ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 15:35:20 | 6332ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 23:27:27 | 903ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 21:38:54 shown | 1086ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-05 19:16:58 | 1070ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-28 07:26:58 | 1529ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 15:32:51 | 3205ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 15:48:46 | 977ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 00:36:32 | 65535ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:08:21 | 839ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:04:18 | 2043ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 22:00:31 | 2882ms | 2 NS 1 A 1 MX | 🔒 Secure |