brsv.dk is a .dk domain served by 2 nameservers (hope.ns.cloudflare.com, valentin.ns.cloudflare.com). It was registered on 10 February 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. We saw it become registrar-handled on 15 October 2026, when it moved from direct registration at Punktum to Simply.com A/S. Its website address 104.21.24.17 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by brsv-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.24.17 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.216.75 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.149.136 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3036::6815:1811 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:d84b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.24.17,172.67.216.75 ech=AEX+DQBB0AAgACBQLyNM4WIIc71mTXjK3ynKUxnPZR4u7rt59QVjYn7/JgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3036::6815:1811,2606:4700:3037::ac43:d84b |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| google-site-verification=AJaycFXieNNxfKHUe5xz1cgkFbWd6wdUD8YdGDvRhhk |
| mscid=RurFGWOlk2VhCAzfI7FCZ4wHB3rbqirRvMTNCBnLDnRqlOgzC1K+35uAwNBq4r+uMpxmfsQzP7JT15AYZ9fnQA== |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (brsv.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.brsv.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:6127c33c733342da9019af2ee50010fc@dmarc-reports.cloudflare.net,mailto:johan@brsv.dk; ruf=mailto:johan@brsv.dk; fo=1; adkim=s; aspf=r; sp=reject |
| www | 104.21.24.17 172.67.216.75 2606:4700:3036::6815:1811 2606:4700:3037::ac43:d84b (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-brsv-dk._domainkey.brunnsvendsen.onmicrosoft.com | RSA · ~2048 bit |
| selector2 | selector2-brsv-dk._domainkey.brunnsvendsen.onmicrosoft.com | 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 | 2417330126 |
| Primary NS (MNAME) | hope.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2014-02-10 |
| Expires | 2027-02-28 (133d) |
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).
| Domain | Registrar |
|---|---|
| motionsklubrs.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 07:17:34 | 4793ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-16 06:15:17 | 1130ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-15 02:41:36 | 2599ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-14 01:59:25 | 1142ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-13 01:28:38 shown | 3422ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-12 00:28:58 | 971ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-10 23:16:07 | 2358ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-09 20:19:54 | 1793ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-08 17:38:48 | 924ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-07 17:25:48 | 3744ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-06 17:05:28 | 1155ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-05 16:38:50 | 3055ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-04 16:13:14 | 1535ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 16:08:32 | 1105ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-02 16:07:28 | 1543ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 16:03:41 | 1115ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 15:54:34 | 1544ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-29 15:44:17 | 1344ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-28 15:35:28 | 1389ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-27 15:22:17 | 2749ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 15:17:25 | 2741ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 15:05:10 | 3581ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 07:45:33 | 1226ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-24 07:33:13 | 1129ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 06:03:49 | 1588ms | 2 NS 2 A 1 MX | 🔓 Insecure |