A blind user lands on your website. They are using a screen reader, software that reads the page aloud and helps them navigate. If your images have no alt text, the screen reader says nothing. If your buttons have no labels, it says “button.” If your form fields are unnamed, the user has no idea what they are filling in. They close the tab. You never knew they were there.

This is happening on the majority of websites right now, and most of the teams behind those sites have no idea. Web accessibility standards exist to fix this, and in 2026 there are faster ways than ever to find out exactly where your site is failing.

The things that break the most websites

Alt tags are the simplest place to start. Every image on your website that carries meaning needs a text description in its alt attribute. Not “image001.jpg.” Not a keyword dump. An actual description of what the image shows. Decorative images should have an empty alt attribute so screen readers skip them entirely. Getting this wrong is the single most common accessibility failure on the web.

Colour contrast is next. WCAG 2.2 requires a contrast ratio of at least 4.5:1 between normal body text and its background. For large text above 18pt, the minimum drops to 3:1. That light grey text on a white card that looks minimal and elegant? It almost certainly fails. So does white text on a medium-blue background in many cases. This is not a stylistic suggestion. It is the difference between readable and unreadable for millions of people with low vision, and it affects everyone on a bright screen in direct sunlight too.

Keyboard accessibility is where a lot of well-designed websites quietly fall apart. Every interaction on your site, clicking a button, opening a menu, submitting a form, navigating between sections, needs to be possible using only a keyboard. Tab should move focus forward. Shift+Tab should move it back. The Enter or Space key should activate things. Focus indicators, the visible outline that shows where keyboard focus currently sits, must be visible at all times. Many sites remove these outlines because they look untidy. That decision makes the entire site unusable for keyboard-only users.

Skip navigation links are a small thing that matters more than it seems. They allow keyboard and screen reader users to jump past the main navigation directly to the page content, without having to tab through every menu item on every page load. A single line of HTML. Most sites do not have it.
Form labels, meaningful link text, logical heading structure (H1, H2, H3 in order, not skipped), video captions, sufficient touch target sizes on mobile. These are the foundations. None of them are technically complex. All of them get skipped when a team is racing to launch.

Where AI comes in

This is where things have shifted significantly. Running a full accessibility audit used to mean hiring a specialist, waiting weeks, and receiving a long document. Now there are tools that give you a working picture of your site’s accessibility in minutes.

Google Lighthouse, built into Chrome DevTools, runs an accessibility audit alongside its performance and SEO checks. It is free, it flags issues against WCAG criteria, and it gives you a score with specific recommendations. It is a strong first pass. WAVE by WebAIM works directly in the browser and gives a visual overlay of accessibility errors, warnings, and structural elements on any page. Also free. Also worth running today.

Axe DevTools, built on the open-source axe-core engine, is the standard in professional development pipelines. It plugs into Chrome or Firefox, integrates with testing frameworks like Cypress and Playwright, and runs checks on every deployment so accessibility regressions get caught before they go live. Deque, the company behind axe, has been adding AI-assisted testing that extends automated coverage beyond what rule-based scanning can detect.This is the important distinction. Standard automated tools catch between 25% and 40% of WCAG violations. An AI-assisted agent, running on top of those tools, can push that coverage closer to 55–60% by catching contextual issues that rules cannot. It can identify three navigation links all labelled “Learn More” and flag that a screen reader user has no way to distinguish them. It can catch a heading structure that looks logical visually but is broken in the DOM. It can spot when colour is being used as the only way to communicate form errors.

Teams doing this well in 2026 are running axe-core or Lighthouse in their CI/CD pipelines so no deployment goes live without a baseline accessibility check, and layering an AI agent on top to catch the contextual issues that automated rules miss. Then they are doing a manual check on top of that, because the final 40% still requires a human.

If you want to start today, open Chrome DevTools on your homepage, run a Lighthouse audit, and look at the Accessibility section. Whatever score comes back, the flagged issues are real and fixable. Then run the same page through WAVE for a second opinion.

The engineering work that goes into a well-built digital product is exactly this kind of thinking applied from the beginning of a project, not as a patch at the end. If your next build needs to get this right from day one, let’s get into it.