basistryk.dk is a .dk domain served by 2 nameservers (deborah.ns.cloudflare.com, pablo.ns.cloudflare.com). It was registered on 6 February 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.199 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by basistryk-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no 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 |
|---|---|---|---|---|---|---|---|
| 185.21.40.199 | 300s | linux14.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 52.98.154.152 |
| 🔶 Autoconfig | 172.67.128.82 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| MS=ms67686210 |
| v=spf1 a mx ip4:37.187.129.135 ip4:77.68.213.14 ip4:185.163.184.25 include:spf.protection.outlook.com include:spf.montes.dk -all |
| Policy | Record (basistryk.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:37.187.129.135 ip4:77.68.213.14 ip4:185.163.184.25 include:spf.protection.outlook.com include:spf.montes.dk -all |
| www | 185.21.40.199 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| 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 |
|---|---|---|
| default | — | RSA Invalid key data — receivers can't verify signatures |
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: 4/10 · 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 | 2417482042 |
| Primary NS (MNAME) | deborah.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 | 1998-02-06 |
| Expires | 2027-03-31 (165d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 22:29:24 shown | 3605ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-14 18:39:26 | 3248ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 20:33:54 | 1406ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-28 20:17:32 | 1210ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 20:09:07 | 862ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-27 05:03:37 | 814ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-07 11:17:22 | 760ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 04:55:26 | 1109ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-17 11:02:41 | 3498ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 14:34:33 | 6778ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-03 08:07:34 | 1376ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-20 11:19:21 | 1970ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-26 14:41:36 | 1365ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-24 02:27:50 | 919ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 21:18:18 | 922ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 21:35:53 | 1786ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 14:09:43 | 1094ms | 2 NS 1 A 1 MX | 🔒 Secure |