Documentation
Everything the support assistant knows about AccessDiff. Short on purpose.
- Getting started
AccessDiff does one thing: it scans your websites every week with automated accessibility checks against WCAG 2.2 AA, shows what changed since last week, and sends a report you can forward to whoever owns the fix.
- How scanning works
Up to 25 pages per site per scan: the homepage first, then pages from your sitemap with the shallowest paths first, then pages found by following links on the same site. Assets (PDFs, images), pages blocked by robots.txt and pages behind a login are skipped. Pages that return an error are listed under "Pages that could not be scanned" and their previous issues are marked unverified rather than fixed.
- Questions and answers
Automated checks against WCAG 2.2 level A and AA, using the axe-core rule set, plus a few labelled best-practice checks such as heading order. Each issue in a report names the rule, the WCAG success criterion, the element on the page and how to fix it.
- Billing
| Plan | Price | Sites | Site scans / month through the API | Quick scans / month through the API | API keys | | ------- | ------------------------- | -------------------- | ---------------------------------- | ----------------------------------- | -------- | | Free | $0 | none (instant scan) | 0 | 0 | 1 | | Starter | $49/month or $490/year | up to 5 | 40 | 200 | 3 | | Growth | $99/month or $990/year | up to 25 | 200 | 1,000 | 10 | | Agency | $149/month or $1,490/year | unlimited (fair use) | 2,000 | 5,000 | 25 |
- API keys
An API key lets a script, a CI job or an AI agent run scans without a browser. Keys are created and revoked on **Account → API keys**. The free tier allows 1 active key, Starter 3, Growth 10, Agency 25.
- Agent access
AI agents are first-class users. Everything a person can do with a scan, an agent can do through the API or the MCP server, with the same account, the same allowances and the same price.
- Refunds
Ask within **14 days** of any charge and you get a full refund, no questions asked. This covers the first payment and every renewal, monthly or annual. The 14 days count from the date of the charge.