Web accessibility is the rare investment that pays back in SEO, conversion, brand trust and legal protection at the same time. Skip it and you lose roughly one in five visitors who can't use your site properly. Here's what WCAG 2.2 actually requires and where to start.
Why accessibility is a business case, not a checkbox
- ~15% of the global population has a disability — a market larger than any country except China or India.
- ADA and EU accessibility lawsuits hit a record high in 2025 and are still climbing.
- Screen-reader-friendly HTML is the same HTML Google and AI crawlers understand best.
- Accessible forms convert measurably better for everyone, not just users with disabilities.
WCAG 2.2 essentials in plain English
WCAG (Web Content Accessibility Guidelines) is organized around four principles: Perceivable, Operable, Understandable, Robust. Level AA is the practical target — required by most laws and reasonable to ship.
- Perceivable — text alternatives for images, captions for video, sufficient color contrast.
- Operable — every function usable by keyboard alone, no time-based traps.
- Understandable — predictable navigation, clear form labels and error messages.
- Robust — clean semantic HTML that works with assistive tech and future browsers.
Unplug your mouse. Try to complete your primary conversion flow using only Tab, Shift+Tab, Enter and arrow keys. Whatever breaks first is your first fix.
The 10 quick wins (a weekend of work)
- 1Real alt text on every meaningful image; empty alt on decorative ones.
- 2Contrast ratio ≥ 4.5:1 for body text, 3:1 for large text.
- 3Visible focus ring on every interactive element.
- 4Labels on every form field — not just placeholders.
- 5Descriptive link text — never 'click here' or 'read more'.
- 6One H1 per page and a logical heading hierarchy.
- 7Skip-to-content link at the top of every page.
- 8ARIA landmarks — header, nav, main, footer.
- 9Video captions and transcripts for audio.
- 10No color as the sole indicator of state or meaning.
The accessibility–SEO overlap
The overlap is enormous. Semantic HTML, descriptive alt text, clear heading hierarchy, meaningful link labels, form labels — every one of these is both a WCAG requirement and a signal Google and AI search engines use to understand your content. An accessible site is almost always a more crawlable, more citable site.
"The cheapest SEO audit is an accessibility audit. Fix the accessibility issues and your organic traffic almost always follows."
Why 'accessibility overlays' make it worse
Third-party overlays that promise 'instant ADA compliance' have been named in a growing share of the lawsuits they were sold to prevent. They rarely fix underlying HTML issues, often interfere with real screen readers, and don't satisfy WCAG. Fix the source, not the surface.
Want a WCAG 2.2 audit of your live site?
Request a free accessibility auditFrequently asked questions
Which WCAG level do I actually need to meet?
Level AA is the practical and legal target for almost every business. Level AAA is aspirational — required only for narrow contexts like government content in some jurisdictions.
Is my site legally required to be accessible?
In the US, ADA case law consistently treats commercial websites as places of public accommodation. In the EU, the European Accessibility Act took effect in June 2025 for most consumer-facing digital services. Consult a lawyer for your specifics, but assume yes.
