frb-privatskole.dk is a .dk domain served by 2 nameservers (bella.ns.cloudflare.com, mark.ns.cloudflare.com). It was registered on 19 March 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.1.86 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by frbprivatskole-dk0i.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.1.86 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.128.240 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.24 |
| 🔶 Autoconfig | 172.67.128.240 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:80f0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:156 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.1.86,172.67.128.240 ech=AEX+DQBBKgAgACCu60V83/DDFDEyue73FZpzzpIwqiqVgDHylsvWWs+GSQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:80f0,2606:4700:3035::6815:156 |
| TXT Record |
|---|
| v=spf1 mx a include:web.shared.mysmtp.com ip4:89.221.167.1/24 ip4:5.186.164.156 ip4:94.18.218.35 ip4:94.18.218.34 include:spf.protection.outlook.com ip4:213.199.132.245 -all |
| Policy | Record (frb-privatskole.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a include:web.shared.mysmtp.com ip4:89.221.167.1/24 ip4:5.186.164.156 ip4:94.18.218.35 ip4:94.18.218.34 include:spf.protection.outlook.com ip4:213.199.132.245 -all |
| Policy | Record (_dmarc.frb-privatskole.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:f000a92ddc4049639bace4be61ba6feb@dmarc-reports.cloudflare.net; |
| www | 104.21.1.86 172.67.128.240 2606:4700:3034::ac43:80f0 2606:4700:3035::6815:156 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network frb-privatskole.dk: 104.21.1.86 172.67.128.240 2606:4700:3034::ac43:80f0 2606:4700:3035::6815:156 (AS13335) www.frb-privatskole.dk: 104.21.1.86 172.67.128.240 2606:4700:3034::ac43:80f0 2606:4700:3035::6815:156 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-frbprivatskole-dk0i._domainkey.frederiksbergprivatskole.onmicrosoft.com | RSA · ~1024 bit below 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: 7/10 · 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 | 2414524022 |
| Primary NS (MNAME) | bella.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 1999-03-19 |
| Expires | 2027-03-31 (155d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-20 09:36:28 | 1055ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-09 13:43:50 | 1155ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-03 12:33:36 | 1045ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-01 23:55:49 | 629ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-25 22:41:07 | 1136ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-15 18:56:56 shown | 2524ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-06 13:02:00 | 2048ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-08 19:18:49 | 4238ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-05 11:08:43 | 2061ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-16 10:36:06 | 17146ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-15 05:05:29 | 2228ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-26 13:01:29 | 957ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-21 19:35:47 | 5058ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-20 07:27:08 | 1816ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-17 09:40:41 | 956ms | 2 NS 2 A 1 MX | 🔒 Secure |