Web accessibility requirements: what you need to comply with

Table of Contents

• Introduction
• What web accessibility requirements mean
• Legal compliance depends on the market and service
• Where business websites most often fail
• How to audit a website without making it a superficial exercise
• Accessibility must be integrated into the development process
• Don't confuse a statement with compliance
• Measure accessibility as a business decision
• Frequently asked questions about web accessibility

Introduction

A form that cannot be completed using a keyboard, a button without a clear label, or insufficient contrast can turn a visit with purchase intent into a lost opportunity. Web accessibility requirements are not an optional finishing touch added before publication: they affect user experience, regulatory risk, conversion, and your business's actual ability to serve more people.

For a small or growing business, the question is not only whether the website complies with a specific standard. The question is whether the digital infrastructure excludes customers, makes operations more difficult, or creates a problem that will be more expensive to fix once the website, acquisition channels, and business volume are larger.

What web accessibility requirements mean

Web accessibility means designing and developing a website that can be perceived, understood, and used by people with different abilities, devices, and navigation methods. This includes people with visual, hearing, motor, cognitive, or temporary disabilities, as well as users with a limited connection, a small screen, bright ambient light, or a temporary injury.

In practical terms, an accessible website allows users to navigate with a keyboard, understand content using a screen reader, enlarge text without losing functionality, identify errors in a form, and consume audiovisual content with appropriate alternatives. It is not about creating a "special website." It is about building a website that works properly for more people.

The most widely used technical reference standard is the Web Content Accessibility Guidelines, known as WCAG. These guidelines are organized around four principles: content must be perceivable, operable, understandable, and compatible with assistive technologies. For most businesses, WCAG Level AA is the most reasonable starting point.

Legal compliance depends on the market and service

Not all companies have exactly the same obligations. The applicable framework may vary depending on the country where you operate, the type of customer, the sector, the size of the organization, and whether you provide services to the public sector or consumers.

In the European Union, the European Accessibility Act has raised requirements for certain consumer-oriented products and services, including some e-commerce, banking, transport, communications, and digital content services. Its effective application since June 2025 means that many businesses need to seriously review their digital channels. If your business operates from Andorra but sells to, attracts, or provides services to EU customers, this commercial reality also matters.

In addition, public-sector websites and suppliers working with government bodies often have specific requirements. In B2B contracts, it is increasingly common for large companies to include accessibility as a purchasing or digital security criterion.

This does not replace legal advice. But it does define a clear operational decision: before redesigning, developing an application, or launching an online store, you need to identify which regulations apply to your business and what level of compliance is required.

Where business websites most often fail

Accessibility errors tend to appear in elements that also directly affect conversion. A design may look correct on a large screen while being impossible for part of the audience to use.

Color contrast is a common example. Gray text on light backgrounds, error messages in barely visible red, or buttons that are differentiated only by color reduce readability. Fixing this does not mean giving up your brand identity. It means defining a functional palette with combinations tested for text, actions, active states, and alerts.

Forms are another critical source of friction. A field should have a visible label or one that can be read by assistive technology, clear instructions, and errors explained precisely. Simply saying "invalid field" does not help anyone. Indicating "Enter an email address in the format nom@empresa.com" does.

Dropdown menus, pop-up windows, carousels, booking calendars, and payment processes also frequently fail. If keyboard focus disappears, becomes trapped inside a window, or jumps to an unexpected location, the user loses control. And if the journey is unpredictable, the problem is not exclusively one of accessibility: it is a product problem.

How to audit a website without making it a superficial exercise

Automated tools are useful, but they cannot certify on their own that a website is accessible. They can detect obvious problems, such as missing alternative attributes or contrast errors, but they cannot determine whether alternative text actually describes an image or whether a purchasing process is understandable.

A useful audit combines automated review, manual checks, and analysis of business journeys. At a minimum, you should review:

• Complete keyboard navigation, including menus, forms, windows, and payments.
• The structure of headings, labels, links, and page regions.
• Contrast, text resizing, and mobile behavior.
• Audiovisual content, informative images, and downloadable documents.
• Business-generating flows: quote requests, bookings, registration, purchases, and contact.

Priority should not be determined only by the number of errors. A problem on a contact page may be less urgent than an error in the checkout that prevents purchases from being completed. You need to consider technical severity, commercial impact, frequency of use, and the effort required to fix the issue.

Accessibility must be integrated into the development process

Fixing a published website may be necessary, but incorporating accessibility from the initial strategy is more efficient. When it comes late, it often leads to redesigns, duplicated components, and technical decisions that have to be undone.

At the content stage, this means writing descriptive headings, maintaining a logical hierarchy, and not relying on images to communicate essential messages. In design, it means defining contrast, focus states, appropriate touch target sizes, and consistent interaction patterns. In development, it means using semantic HTML before adding artificial solutions, validating forms accessibly, and testing real components, not just mockups.

Applications and portals with complex functionality require even more discipline. Data tables, filters, dashboards, date pickers, and dynamically loaded content require specific behaviors for keyboards and screen readers. Not everything can be solved with an external accessibility layer. In fact, these solutions can hide problems without fixing the underlying architecture.

Don't confuse a statement with compliance

An accessibility statement can communicate the company's commitment, the scope of the review, known limitations, and a way to report issues. It is a useful piece of transparency, especially when formal obligations exist.

But publishing a statement does not make a website accessible. Neither does installing a generic widget with font-size or contrast options. If the code, content, and conversion flows continue to fail, the experience remains poor.

The work that creates value is the work that leaves a maintainable foundation: a design system with clear criteria, well-implemented reusable components, guidelines for the content team, and a control methodology before publishing changes.

Measure accessibility as a business decision

Accessibility has a cost, like any quality requirement. It may require more time for design, development, testing, and maintenance. But the cost of not considering it also exists: fewer conversions, abandonment, support issues, blocked opportunities in tenders, technical debt, and regulatory exposure.

The level of investment depends on the starting point. A simple corporate website may need a focused audit and corrections to templates, forms, and content. An e-commerce platform or SaaS product may require a deeper review of its components, authenticated processes, and transactional flows.

The right criterion is not to chase a perfect score in a tool. It is to reduce real barriers at the points that support the customer relationship and build a process that does not reintroduce the same errors with every update.

Frequently asked questions about web accessibility

Does an accessible website also rank better?

There is no direct guarantee that complying with WCAG will improve rankings on its own. However, good semantic structure, clear content, functional performance, and a better mobile experience can reinforce factors that also benefit organic effectiveness and conversion. The main goal should be usability, not an SEO shortcut.

Do I only need to review accessibility once?

No. Every new component, campaign, landing page, PDF document, or integration can create barriers. The initial review fixes the starting point; governance prevents the problem from returning. This is especially relevant when several people publish content or when the website depends on third-party plugins.

A website that allows more people to understand, navigate, and complete an action is a more reliable commercial asset. The best way to approach accessibility is to incorporate it into the decisions that already shape growth: what we build, how we build it, and how we check that it continues to work as the business changes.