Check your messaging and DNS records before you ship to production.
Generate authentication keys, inspect raw email headers, preview interactive WhatsApp templates, and calculate SMS segments directly in your browser.
Autenticación de correo electrónico
Generador de políticas DMARC
Configure a DMARC policy that protects your domain from spoofing, or paste an existing DNS record to review its enforcement rules in plain English.
Autenticación de correo electrónico
Analizador de informes DMARC
Upload an XML aggregate report from your mailbox providers to see which servers send as your domain, what passes authentication, and what to fix.
Autenticación de correo electrónico
Generador de registros BIMI
Create and validate the DNS record that displays your brand logo in supporting inboxes, or paste an existing record to verify its settings.
Autenticación de correo electrónico
Generador de claves DKIM
Generate an RSA key pair and its public DNS record locally in your browser, or paste an existing DKIM record to inspect its configuration.
Registros DNS
Divisor de registros DNS
Split long DKIM keys and TXT records into quoted 255-character strings formatted for Cloudflare, Route 53, Azure, or a zone file.
Diagnóstico de correo
Analizador de cabeceras de correo
Paste raw email source to inspect SPF, DKIM, and DMARC verdicts alongside hop-by-hop delivery delays.
Mensajería
Constructor de mensajes WhatsApp
Design interactive WhatsApp messages with buttons, lists, and media, preview how they look on a phone, and copy the ready-to-send request.
Mensajería
Calculadora de segmentos SMS
Paste your SMS copy to see its character encoding, billable segment count, and which characters smart encoding can replace to keep messages short.
Ponlo en práctica.
Continúa con la documentación, guías y ejemplos de este tema.