ren-ejendomsservice.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 2 December 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.99 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by renejendomsservice-dk0i.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 185.21.40.99 | 3600s | linux7.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 185.21.40.99 |
| TXT Record |
|---|
| v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk ~all |
| Policy | Record (ren-ejendomsservice.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.protection.outlook.com include:spf.curanet.dk ~all |
| Policy | Record (_dmarc.ren-ejendomsservice.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:ba8a438ba76b831@rep.dmarcanalyzer.com; ruf=mailto:ba8a438ba76b831@for.dmarcanalyzer.com; pct=100; fo=1 |
| www | 185.21.40.99 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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-renejendomsservice-dk0i._domainkey.renejendomsservice.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: 4/10 · 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 | 2021111701 |
| Primary NS (MNAME) | ns1.curanet.dk.ren-ejendomsservice.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-12-02 |
| Expires | 2026-12-31 (75d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 20:36:28 | 950ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-01 01:44:08 shown | 842ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 22:42:31 | 793ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 04:24:17 | 1144ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 04:45:07 | 998ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 01:39:42 | 768ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 00:35:58 | 1120ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 08:24:39 | 944ms | 2 NS 1 A 1 MX | 🔒 Secure |