executivebriefing.dk is a .dk domain served by 2 nameservers (kayden.ns.cloudflare.com, lia.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.61.207 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by executivebriefing-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 |
|---|---|---|---|---|---|---|---|
| 104.21.61.207 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.214.140 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.163.40 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:3dcf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3033::ac43:d68c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.61.207,172.67.214.140 ech=AEX+DQBB6QAgACDRPtsrrP204QNn2cbiOuqAo35NzIix9XKU7f7TqVyMMAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:3dcf,2606:4700:3033::ac43:d68c |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms76780950 |
| v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (executivebriefing.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.executivebriefing.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:5a1311df76@rua.easydmarc.eu;ruf=mailto:5a1311df76@ruf.easydmarc.eu;ri=86400;aspf=s;adkim=s;fo=1 |
| www | 104.21.61.207 172.67.214.140 2606:4700:3033::6815:3dcf 2606:4700:3033::ac43:d68c (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network executivebriefing.dk: 104.21.61.207 172.67.214.140 2606:4700:3033::6815:3dcf 2606:4700:3033::ac43:d68c (AS13335) www.executivebriefing.dk: 104.21.61.207 172.67.214.140 2606:4700:3033::6815:3dcf 2606:4700:3033::ac43:d68c (AS13335) |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| selector1 | selector1-executivebriefing-dk._domainkey.hildebrandtbrandi.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-executivebriefing-dk._domainkey.hildebrandtbrandi.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: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.executivebriefing.dk | 1z8MtfG1pCvVovEqB2KT0QEON23HHy6kViC-GIpqVVY |
| TXT | _acme-challenge.executivebriefing.dk | 45u4ajhw_9dMRQejUHVtIW-6DkZUkT42c4K2-RRmCuQ |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2414684045 |
| Primary NS (MNAME) | kayden.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-06 11:14:19 | 2304ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-19 09:46:37 | 1790ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-12 23:32:15 shown | 1661ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 08:10:55 | 1764ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-28 09:09:26 | 1218ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-19 05:51:13 | 3535ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-26 03:52:13 | 1323ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-16 17:30:42 | 1941ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-11 18:49:36 | 10430ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-03 15:19:32 | 5974ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 23:25:28 | 674ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 09:09:23 | 3246ms | 2 NS 2 A 1 MX | 🔒 Secure |