jfilbert.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.30 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by jfilbert-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.30 | 3600s | vm1330.enterprisecloud.nu | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| TXT Record |
|---|
| MS=ms39783668 |
| v=spf1 a mx include:spf.curanet.dk include:spf.protection.outlook.com ~all |
| Policy | Record (jfilbert.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a mx include:spf.curanet.dk include:spf.protection.outlook.com ~all |
| www | 185.21.40.30 (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 |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-jfilbert-dk._domainkey.dw1jfilbertdk.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-jfilbert-dk._domainkey.dw1jfilbertdk.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: 6/10 · 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 | 2024030101 |
| Primary NS (MNAME) | ns1.curanet.dk |
| Responsible (RNAME) | hostmaster@curanet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:30:24 | 1025ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 15:38:55 | 1004ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 15:15:56 | 1637ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 13:27:27 | 1171ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 09:55:24 | 673ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-22 15:43:10 shown | 1023ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 12:53:00 | 2265ms | 2 NS 1 A 1 MX | 🔒 Secure |