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The Scalability analysis only becomes available after the Security Check completes. Finish the security cycle before proceeding.

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How to start

Open the Scalability Check page for your app and fill the kickoff form: Both fields accept numbers up to 10,000,000. If you don’t have a clear target yet, project doubling or tripling the current base — you can run a new analysis later with different numbers. Click Start analysis to begin.

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What happens during the analysis

The run takes about 1 minute and executes three tracks in parallel:
1

Performance

Collects Web Vitals (LCP, INP, CLS) and bundle size through a controlled execution of your app.
2

Coupling

Evaluates code architecture — where coupling points will make growth harder.
3

Data

Maps data flow and identifies patterns that may bottleneck as the user base grows.
In parallel, the analyzer also detects the third-party APIs your app consumes to prepare the next step (Plan Review). The progress bar shows the overall percentage. When all subscores are computed, you’re automatically redirected to the Plan Review wizard.

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Possible statuses

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After the technical analysis

When the technical analysis ends, the report is not ready yet. The next two steps ask for your confirmation so the report numbers reflect your reality — not the analyzer’s guesses.
If you closed the browser mid-flow, just go back to your app — the portal takes you straight to where you left off (Plan Review or Tune Assumptions).

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Next steps

Plan Review

Confirm the real tier of each API your app uses.

Tune Assumptions

Refine consumption estimates per user before seeing the report.