rybber.dk is a .dk domain served by 2 nameservers (hugh.ns.cloudflare.com, naomi.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.229.203.225 is hosted by Netnoerden ApS (AS216275) in Denmark. Mail is handled by rybber.dk. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 91.229.203.225 | 300s | — | AS216275 | Netnoerden ApS | 91.229.203.0/24 | 🇩🇰 Denmark | Virum |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | rybber.dk | 91.229.203.225 | — | AS216275 Netnoerden ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.171.188 |
| 🔶 Autoconfig | 104.21.71.211 |
| Policy | Record (_dmarc.rybber.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:a7efa2269aeb469896977ee90d237a8b@dmarc-reports.cloudflare.net |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 104.21.71.211 172.67.171.188 2606:4700:3034::ac43:abbc 2606:4700:3035::6815:47d3 (AS13335) (address records, no CNAME) |
| www vs bare domain | Different networks rybber.dk: 91.229.203.225 (AS216275) (all like this)www.rybber.dk: 104.21.71.211 172.67.171.188 2606:4700:3034::ac43:abbc 2606:4700:3035::6815:47d3 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.rybber.dk | A5N2fNGnxyVfvxZeEx0yluG8TEbV7S-fsYwY93KvJFQ |
| TXT | _acme-challenge.rybber.dk | _Ed5Tb_inEdZIesRi4kLVDTRu3HKvXF2Uc067nH1Uto |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2415804888 |
| Primary NS (MNAME) | hugh.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 15:34:40 | 2122ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 23:20:05 | 566ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-27 04:01:40 | 922ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 03:46:40 shown | 2174ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-04 05:05:30 | 1791ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 09:28:02 | 4892ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 09:42:55 | 751ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-31 15:20:21 | 9013ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-06 20:39:54 | 1463ms | 2 NS 1 A 1 MX | ❓ Unknown |
| 2026-06-22 22:42:24 | 2561ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-22 19:19:07 | 1169ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 17:35:53 | 965ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-17 12:10:50 | 790ms | 2 NS 1 A 1 MX | 🔓 Insecure |