espersen.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 93.191.155.240 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by espersen-dk.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 our latest 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 |
|---|---|---|---|---|---|---|---|
| 93.191.155.240 | 60s | forward.dnsfactory.dk | AS48854 | team.blue Denmark A/S | 93.191.152.0/21 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.152 |
| TXT Record |
|---|
| MS=181026D46BB51277669B148B54EB5C2296A983C4 |
| MS=ms70368237 |
| v=spf1 ip4:40.68.36.243 include:spf.protection.outlook.com -all |
| Policy | Record (espersen.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:40.68.36.243 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.espersen.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; rua=mailto:dmarc_agg@vali.email |
| www | 93.191.155.240 (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-espersen-dk._domainkey.insepa.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-espersen-dk._domainkey.insepa.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: 1/10 · 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 | 2024111201 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 13:01:01 shown | 1292ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-03 01:07:39 | 1287ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 11:17:21 | 947ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-30 19:06:52 | 779ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-29 10:04:35 | 799ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 08:25:06 | 559ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 08:24:03 | 765ms | 2 NS 1 A 1 MX | 🔒 Secure |