The Accessibility Checklist That Catches 80% of Issues
Contrast and color
WCAG AA contrast for all text. Color is never the only way to convey info. Run through WebAIM checker monthly.
Keyboard navigation
Tab through the whole site. Every CTA, every menu, every modal must work with keyboard alone.
Alt text and labels
Every image has meaningful alt text. Every form field has a label. Screen readers need both to make sense of the page.