jeslan.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. 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.
| TXT Record |
|---|
| protonmail-verification=acf082b3beb851c597318967acd6a0d3e5f334b6 |
| v=spf1 include:_spf.protonmail.ch include:spf.simply.com -all |
| Policy | Record (jeslan.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.protonmail.ch include:spf.simply.com -all |
| Policy | Record (_dmarc.jeslan.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | Exists, no address |
| www vs bare domain | Neither resolves jeslan.dk: no address www.jeslan.dk: no address |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025032304 |
| Primary NS (MNAME) | ns1.simply.com |
| Responsible (RNAME) | hostmaster@simply.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-21 03:13:11 | 1266ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-10-02 10:14:46 | 989ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-09 03:24:05 | 1472ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-29 11:55:12 | 2407ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-27 23:23:33 | 906ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-26 13:17:28 | 1269ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-16 08:11:48 | 4146ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-22 20:52:45 | 3473ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-03 20:53:19 | 23620ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-19 03:22:17 | 8264ms | 3 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-17 21:58:44 shown | 681ms | 3 NS 0 A 2 MX | 🔒 Secure |