Drop your built site folder. b0-x checks it the same way the publisher does: what gets inscribed, what's skipped, which links would break, and what it costs.

Drop a folder hereor click to choose one · stays in your browser, nothing is uploaded

Skipped automatically, like the CLI: dotfiles, .env*, node_modules, api/, *.map, *.sql, lockfiles and config at the top level, and .md files nothing links to. Costs are an estimate at 100 sat/kB; the CLI's dry run prints the exact fee before anything is signed.