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-mailauthenticatie
DMARC-beleidsgenerator
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-mailauthenticatie
DMARC-rapportanalyse
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-mailauthenticatie
BIMI-recordgenerator
Create and validate the DNS record that displays your brand logo in supporting inboxes, or paste an existing record to verify its settings.
E-mailauthenticatie
DKIM-sleutelgenerator
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-records
DNS-recordsplitter
Split long DKIM keys and TXT records into quoted 255-character strings formatted for Cloudflare, Route 53, Azure, or a zone file.
E-maildiagnostiek
E-mailheaderanalyse
Paste raw email source to inspect SPF, DKIM, and DMARC verdicts alongside hop-by-hop delivery delays.
Messaging
WhatsApp-berichtbouwer
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-segmentcalculator
Paste your SMS copy to see its character encoding, billable segment count, and which characters smart encoding can replace to keep messages short.
Breng het in de praktijk.
Ga verder met de documentatie, handleidingen en voorbeelden voor dit onderwerp.