Lumi vs Tenon
Multi-engine scanning vs single API-first testing
Tenon is an API-first accessibility testing tool designed for developers who want to integrate accessibility checks into their build processes. It offers a clean API and good developer documentation. However, it runs a single proprietary engine with limited rule coverage, and the product has seen limited updates in recent years.
What Lumi finds that Tenon misses
Five scanning engines with 300+ rules vs one engine with limited rules
Active development with regular updates and new checks
Keyboard interaction testing (focus traps, tab order, focus obscured)
WCAG 2.2 checks enabled by default
Full dashboard with score tracking, scan comparison, and reporting
CI/CD API with pass/fail gates - not just raw API access
AI-powered visual analysis for complex accessibility issues
Where Tenon falls short
Single proprietary engine with limited rule coverage
Product updates have slowed significantly
No keyboard interaction testing
No WCAG 2.2 specific checks
No dashboard or visual reporting for non-developers
Limited multi-page scanning capabilities