# Scan limits & fair use

**Category:** [Accessibility](https://help.totalctrl.app/hc/totalctrl/totalctrl-help-center/en-US/categories/accessibility-1)
**Updated:** 2026-10-04

## What's limited

- **Scans per month** — your plan sets how many scans your workspace can run each calendar month.
- **PDF checks per month** — your plan also sets how many PDF/UA document checks you can run per calendar month.
- **Projects** — how many sites (projects) you can monitor at once.
- **Concurrency** — how many scans a workspace can have queued or running at the same time, so one workspace can never monopolise the scanners.
- **Pages per scan** — each scan crawls up to a fixed number of pages.

## Never unlimited

Accessibility scans always have a finite monthly ceiling — there is no "unlimited" setting. If you hit your monthly limit you can add a **Usage Booster** from Billing or upgrade your plan. Current usage against your limit is shown on the app and on the Billing page.

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## Related Articles

- [Checking PDF documents (PDF/UA)](https://help.totalctrl.app/en-US/articles/accessibility-pdf-ua-1)
- [CLI & browser extension (developer tools)](https://help.totalctrl.app/en-US/articles/accessibility-cli-and-extension-1)
- [Scheduling, alerts & automation](https://help.totalctrl.app/en-US/articles/accessibility-automation)
- [Getting started with Accessibility](https://help.totalctrl.app/en-US/articles/accessibility-getting-started)
- [VPAT / ACR reports & Accessibility Statements](https://help.totalctrl.app/en-US/articles/accessibility-reports-2)

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