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.
E-Mail-Authentifizierung
DMARC-Richtliniengenerator
Configure a DMARC policy that protects your domain from spoofing, or paste an existing DNS record to review its enforcement rules in plain English.
E-Mail-Authentifizierung
DMARC-Berichtsanalyse
Upload an XML aggregate report from your mailbox providers to see which servers send as your domain, what passes authentication, and what to fix.
E-Mail-Authentifizierung
BIMI-Eintrag-Generator
Create and validate the DNS record that displays your brand logo in supporting inboxes, or paste an existing record to verify its settings.
E-Mail-Authentifizierung
DKIM-Schlüsselgenerator
Generate an RSA key pair and its public DNS record locally in your browser, or paste an existing DKIM record to inspect its configuration.
DNS-Einträge
DNS-Eintrag-Splitter
Split long DKIM keys and TXT records into quoted 255-character strings formatted for Cloudflare, Route 53, Azure, or a zone file.
E-Mail-Diagnose
E-Mail-Header-Analyse
Paste raw email source to inspect SPF, DKIM, and DMARC verdicts alongside hop-by-hop delivery delays.
Messaging
WhatsApp-Nachrichten-Builder
Design interactive WhatsApp messages with buttons, lists, and media, preview how they look on a phone, and copy the ready-to-send request.
Messaging
SMS-Segment-Rechner
Paste your SMS copy to see its character encoding, billable segment count, and which characters smart encoding can replace to keep messages short.
In die Praxis umsetzen.
Weiter mit der Dokumentation, Anleitungen und Beispielen zu diesem Thema.