Your files stay on your device
File processing runs in your browser. Documents are not uploaded to our servers. The site may download processing engines and send usage or feedback events without file contents.
How we handle your dataLaboratorU
Email/DNS
Local SPF, DMARC, DKIM, and MX preflight helpers before live DNS checks.
SPF InspectorInspect pasted SPF TXT records locally for common syntax and policy issues.DMARC InspectorInspect pasted DMARC TXT records locally for policy, reporting, and percentage settings.DKIM HelperBuild DKIM DNS names and inspect pasted DKIM TXT or CNAME values locally.MX InspectorInspect pasted MX records locally for priority order and common record-shape issues.