| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.71.87 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.170.74 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::6815:4757 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:aa4a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.71.87,172.67.170.74 ech=AEX+DQBBhQAgACBDVoN6M0evZKRa47Qn1C55d8GGxpzOgAEo31YV5YaFBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:4757,2606:4700:3037::ac43:aa4a |
| TXT Record |
|---|
| brevo-code:88b64fec2cc291e237fa3bc04091ec2d |
| google-site-verification=tQZ3bknTk7zSEbQzt54zeSDsmTq1iTrk-EgCGpqroCQ |
| v=spf1 include:spf.simply.com include:spf.brevo.com -all |
| Policy | Record (techmaster.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.simply.com include:spf.brevo.com -all |
| Policy | Record (_dmarc.techmaster.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | cloudflare.com |
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | globalsign.com |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | sectigo.com |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| 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 | 2405776903 |
| Primary NS (MNAME) | lamar.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-27 23:45:26 | 1068ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-03 00:50:39 | 1158ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-24 13:15:08 | 1707ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-25 20:58:05 | 2184ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-19 17:21:41 | 928ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 13:43:31 | 5423ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |