mikrosec.dk is a .dk domain served by 2 nameservers (chuck.ns.cloudflare.com, lana.ns.cloudflare.com). It was registered on 4 February 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.47.110 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mikrosec-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.47.110 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.147.53 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.136 |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.47.110,172.67.147.53 ech=AEX+DQBBZAAgACAkrEn6gECgdEWk5PMhWUOSVTCvsfM0cKj3LV+x2nl/MQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _sipfederationtls._tcp | 100 | 1 | 5061 | sipfed.online.lync.com |
| TXT Record |
|---|
| MS=ms65357937 |
| v=spf1 a ip4:93.167.225.229 mx:mail.coolhand.dk include:spf.protection.outlook.com ~all |
| Policy | Record (mikrosec.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a ip4:93.167.225.229 mx:mail.coolhand.dk include:spf.protection.outlook.com ~all |
| Policy | Record (_dmarc.mikrosec.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:af6fe5bfcc98457aaecc91f4b45e2467@dmarc-reports.cloudflare.net |
| www | 104.21.47.110 172.67.147.53 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network mikrosec.dk: 104.21.47.110 172.67.147.53 (AS13335) www.mikrosec.dk: 104.21.47.110 172.67.147.53 (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-mikrosec-dk._domainkey.mikrosec.onmicrosoft.com | RSA · ~1024 bit below 2048 bit |
| selector2 | selector2-mikrosec-dk._domainkey.mikrosec.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: 3/10 · 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 | 2417437481 |
| Primary NS (MNAME) | chuck.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 | 2015-02-04 |
| Expires | 2027-05-31 (226d) |
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 |
|---|---|
| adlercreutz.dk | Punktum dk A/S (direct) |
| coolhand.dk | Punktum dk A/S (direct) |
| fugefraes.dk | Punktum dk A/S (direct) |
| fugefræs.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 13:11:52 shown | 2467ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-03 03:18:06 | 4280ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-10-01 03:09:29 | 1295ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-24 01:56:25 | 1674ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-21 11:53:09 | 3034ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-01 08:15:41 | 1368ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-27 21:08:01 | 1203ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-23 07:09:42 | 12737ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-22 06:55:36 | 9841ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-08-07 03:52:54 | 1582ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-07-12 17:01:56 | 2449ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-26 21:28:40 | 6052ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-06-22 05:50:46 | 1175ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 01:59:33 | 1585ms | 2 NS 2 A 1 MX | 🔒 Secure |