rb-fuge.dk is a .dk domain served by 2 nameservers (eva.ns.cloudflare.com, jeff.ns.cloudflare.com). It was registered on 8 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.64.210 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by rbfuge-dk0e.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.64.210 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.155.253 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:40d2 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:9bfd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.64.210,172.67.155.253 ech=AEX+DQBBgAAgACCHmUZFNk/oVmuJfIlYGyainxJpyyl6hzbatl/AMheaRQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:40d2,2606:4700:3035::ac43:9bfd |
| TXT Record |
|---|
| MS=ms32474541 |
| v=spf1 ip4:94.231.106.153 include:spf.protection.outlook.com ~all |
| Policy | Record (rb-fuge.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:94.231.106.153 include:spf.protection.outlook.com ~all |
| www | 104.21.64.210 172.67.155.253 2606:4700:3031::6815:40d2 2606:4700:3035::ac43:9bfd (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-rbfuge-dk0e._domainkey.rbfugeteknik.k-v1.dkim.mail.microsoft | RSA · ~2048 bit |
| selector2 | selector2-rbfuge-dk0e._domainkey.rbfugeteknik.k-v1.dkim.mail.microsoft | 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 | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2416454138 |
| Primary NS (MNAME) | eva.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | DANDOMAIN A/S |
| Registered | 2026-01-08 |
| Expires | 2027-01-07 (73d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-03 10:15:26 shown | 1280ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 09:53:30 | 1517ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 09:02:57 | 901ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 08:43:49 | 1619ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 07:36:45 | 956ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-19 23:10:54 | 1727ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-05 07:58:35 | 1757ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-01 00:08:58 | 1752ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 02:19:32 | 897ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 18:51:36 | 801ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-05 00:21:37 | 6532ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 19:26:27 | 1024ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 09:02:15 | 8698ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 07:47:42 | 1066ms | 2 NS 2 A 1 MX | 🔓 Insecure |