TesseraEvidence follows evidence
Free bounded evidence check

Check your domain's published email-authentication evidence

Bulk-sender requirements vary by provider and sending volume. This best-effort DNS check looks for selected SPF, DKIM, and DMARC signals; it cannot discover every DKIM selector or explain every delivery outcome. Check your own sending domain free:

  • No account or card details
  • Raw results are not retained in a result database
  • Observation stays separate from human judgment
  • Every blind spot remains visible in the result
Source

Trace an authorized asset

Use only a page or domain you own or are authorized to inspect. Never enter credentials, card data, personal data, or session tokens.

A visible current, not a score

Each observation keeps its source and its limit.

This specimen is synthetic and sends no request. A real check replaces it with observations from the request snapshot.

Representative outputEvidence inventory
  1. SPF · observedbounded DNS lookup
  2. DKIM · discovery limitedconfirm provider selectors
  3. DMARC · observedpolicy carried as evidence
Illustrative synthetic dataCSV / JSON