devcronberg.dk is a .dk domain served by 2 nameservers (jay.ns.cloudflare.com, luciane.ns.cloudflare.com). It was registered on 31 August 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by route3.mx.cloudflare.net, route2.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, 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.
| Policy | Record (_dmarc.devcronberg.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | NXDOMAIN |
| www vs bare domain | Neither resolves devcronberg.dk: no address www.devcronberg.dk: no address |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u50745405.wl156.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u50745405.wl156.sendgrid.net | 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.
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2415596789 |
| Primary NS (MNAME) | jay.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2019-08-31 |
| Expires | 2027-08-31 (313d) |
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 |
|---|---|---|---|
| 2026-10-08 05:27:06 | 583ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-29 15:28:37 shown | 2378ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-25 21:35:10 | 874ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-24 00:15:32 | 956ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-20 18:38:27 | 928ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-15 00:59:56 | 1447ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-09-12 23:46:21 | 1288ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-08-15 10:54:24 | 2053ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-26 02:20:36 | 2437ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-07-17 21:02:06 | 9870ms | 2 NS 0 A 3 MX | ❓ Unknown |
| 2026-07-10 18:21:54 | 1712ms | 2 NS 0 A 3 MX | ❓ Unknown |
| 2026-06-29 07:51:13 | 1063ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-21 18:31:19 | 713ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-17 02:50:46 | 2657ms | 2 NS 0 A 3 MX | 🔓 Insecure |
| 2026-06-17 02:30:45 | 787ms | 2 NS 0 A 3 MX | 🔓 Insecure |