Web Accessibility (A11y): From Legal Obligation to Competitive Advantage
30-Second Summary
Making your site accessible for people with disabilities is not only ethical, but expands your market by 15% and improves your SEO.
15% of the world's population has some form of disability. If your web isn't accessible, you're closing the door to millions of potential customers. Also, in 2025, accessibility (A11y) is a direct ranking factor on Google.
What makes a site accessible?
Screen Readers
ARIA labels and Alt text on images so blind people can "hear" your site.
Keyboard Navigation
The entire site must be usable without a mouse, just with the Tab key, vital for people with motor disabilities.
Color Contrast
Legible texts for people with color blindness or reduced vision (Minimum ratio 4.5:1).
The Connection with SEO
What is good for accessibility is good for SEO. Google is, in essence, a blind user navigating your web. If you structure your code for screen readers (H1, H2, semantic tags), Google will understand your content perfectly and reward you.