tstr.dk is a .dk domain served by 2 nameservers (emerson.ns.cloudflare.com, suzanne.ns.cloudflare.com). It was registered on 16 April 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mxa.eu.mailgun.org, mxb.eu.mailgun.org. 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.
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mxa.eu.mailgun.org | 34.111.130.244 | 244.130.111.34.bc.googleusercontent.com | AS396982 Google LLC |
| 10 | 300s | mxb.eu.mailgun.org | 34.111.130.244 | 244.130.111.34.bc.googleusercontent.com | AS396982 Google LLC |
| TXT Record |
|---|
| v=spf1 include:mailgun.org -all |
| Policy | Record (tstr.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:mailgun.org -all |
| Policy | Record (_dmarc.tstr.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; rua=mailto:ca14c809afbc4a9889fcb3591fc171e3@dmarc-reports.cloudflare.net |
| www | Exists, no address |
| www vs bare domain | Neither resolves tstr.dk: no address www.tstr.dk: no address |
| 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 |
DNS lookups: 5/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2416408224 |
| Primary NS (MNAME) | emerson.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | NETIM |
| Registered | 2025-04-16 |
| Expires | 2027-04-15 (177d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 12:04:10 shown | 547ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-10-03 03:37:30 | 805ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-30 03:11:56 | 993ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-20 16:13:58 | 1184ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-14 21:12:49 | 1641ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-09-07 19:10:02 | 1804ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-19 05:29:13 | 4118ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-08-06 13:22:37 | 1245ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-22 10:39:14 | 8797ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-07-17 13:00:02 | 1364ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-28 21:21:06 | 962ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-20 09:14:17 | 2817ms | 2 NS 0 A 2 MX | 🔒 Secure |
| 2026-06-18 03:17:16 | 2637ms | 2 NS 0 A 2 MX | 🔒 Secure |