Use deframer
Check an export
deframer verify compares an app you exported with the published site again.
deframer verify ./my-siteUse it after you change the app, or after the published site changes. The folder must be one made by deframer create.
How it finds the app
If something is already running on port 3000, deframer checks that. Otherwise it starts the app from its existing build. Use another port with --port:
deframer verify ./my-site --port 4000The result
It prints the same checks, parity and report lines as deframer create. Add --json for JSON.