crhconcrete.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 29 June 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.218 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mxa-00344903.gslb.pphosted.com, mxb-00344903.gslb.pphosted.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.42.218 | 3600s | vm1034.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 5 | 3600s | mxa-00344903.gslb.pphosted.com | 185.183.30.218 | mx08-00344903.pphosted.com | AS52129 Proofpoint, Inc. |
| 5 | 3600s | mxb-00344903.gslb.pphosted.com | 185.132.183.168 | mx07-00344903.pphosted.com | AS52129 Proofpoint, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| apple-domain-verification=EE1Czt828QwGSZZv |
| duo_sso_verification=PLxTTzYUl3pe1dGtu79CdaNkM1zPgshnIIReXdomZNXNtcHtjv7CBaoK4P1h0Le0 |
| hDJ6kRaJuJuGVfXZQbCAZTVAS485MDUe8RSsOzX/s/yCIwdOgXR+R/3vzk8XbKrEZmX7Juwn28cAK1fi9Hc8lw== |
| v=spf1 ip4:37.49.129.125/32 ip4:212.237.251.208/28 ip4:185.163.189.34 include:_spf.crh.com include:dedicated.mysmtp.com include:send.heyloyalty.com -all |
| Policy | Record (crhconcrete.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:37.49.129.125/32 ip4:212.237.251.208/28 ip4:185.163.189.34 include:_spf.crh.com include:dedicated.mysmtp.com include:send.heyloyalty.com -all |
| Policy | Record (_dmarc.crhconcrete.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@emaildefense.proofpoint.com; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com |
| www | 185.21.42.218 (AS48854) (address records, no CNAME) |
| 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 |
DNS lookups: 8/10 · policy: -all
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.crhconcrete.dk | SBAfYjzC3MOan2Nr6CtmcvAQ4_FhXD0IpcUcBX7iFyg |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026100901 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-06-29 |
| Expires | 2029-06-30 (977d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-16 12:05:52 | 1052ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-10 03:18:32 shown | 1150ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-10-07 22:42:36 | 2411ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-08-27 13:09:31 | 1132ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 15:24:46 | 1255ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-20 07:06:03 | 5284ms | 2 NS 1 A 2 MX | 🔒 Secure |
| 2026-06-16 22:55:04 | 976ms | 2 NS 1 A 2 MX | 🔒 Secure |