tstryger.dk is a .dk domain served by 2 nameservers (gabriella.ns.cloudflare.com, mitch.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.148 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by tstryger-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 185.21.41.148 | 300s | linux101.curanet.dk | AS48854 | team.blue Denmark A/S | 185.21.40.0/22 | 🇩🇰 Denmark | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover.outlook.com → 40.104.116.56 |
| TXT Record |
|---|
| MS=ms10159010 |
| v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all |
| Policy | Record (tstryger.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all |
| Policy | Record (_dmarc.tstryger.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| www | 185.21.41.148 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u42085828.wl079.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u42085828.wl079.sendgrid.net | 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: 3/10 · 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 | 2411791944 |
| Primary NS (MNAME) | gabriella.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 22:22:26 | 1410ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-29 21:22:30 | 1017ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 00:35:56 | 1455ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-11 21:40:22 | 1144ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-10 05:02:41 | 736ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-26 11:26:25 | 1396ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-10 15:32:23 shown | 5514ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-15 17:20:19 | 10299ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-18 03:47:33 | 1588ms | 2 NS 1 A 1 MX | 🔓 Insecure |