Web Accessibility in WordPress Website Development

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Creating websites that are accessible to all users is not just a matter of meeting legal requirements – it’s about making the web a more inclusive space for everyone. So, if you’re involved in a WordPress project, integrating accessibility best practices should be your top priority.

In this article, we’ll explore the importance of web accessibility in WordPress website development for content writers, designers, and developers, and provide practical tips for integrating accessibility into your projects.

What is Web Accessibility in WordPress Website Development?

Web accessibility, in a nutshell, means designing and developing websites that everyone can access and use, regardless of their abilities, technologies, and circumstances.

Imagine someone with visual impairments who relies on a screen reader to navigate the web. Or someone with physical disabilities who struggles to use the mouse, and has to rely on the keyboard to navigate. An accessible website ensures they can access information, use features, and have a smooth user experience just like anyone else.

However, according to The W3C Web Accessibility Initiative (WAI), web accessibility isn’t limited to people with permanent disabilities. It also considers factors like:

  • Users accessing websites using devices with smaller screens and different input modes.
  • Older people with changing abilities in their vision, hearing, and understanding.
  • Certain situational limitations, like browsing a website in bright sunlight or an environment where you cannot listen to audio.
  • Users with temporary disabilities, such as a broken arm, missing glasses, or even a hangover, may have difficulty navigating a website.
  • Users with slow internet speed may experience challenges loading content-heavy websites.

Why Does Web Accessibility in WordPress Website Development Matter?

There are some compelling reasons why you, as a WordPress content writer, developer, or designer, should care deeply about building accessible websites.

Inclusivity

Approximately 16% or 1 in 6 people in the world have some form of disability. By ignoring accessibility, you’re not only excluding a significant portion of potential users but also missing out on valuable business opportunities. So, a truly accessible website opens the door to a wider audience, allowing everyone to have equal access to its content and services.

And the problem on the web remains widespread. The WebAIM Million 2025 report found that 94.8% of the top one million homepages had detectable WCAG failures. The average homepage had 51 accessibility errors. The same six failure types have topped the list for five consecutive years: low-contrast text, missing alt text, empty links, missing form labels, missing document language, and improperly coded tables.

SEO Benefits

While accessibility isn’t a direct ranking factor for Google, user experience is. Naturally, websites that are accessible tend to offer a better user experience. Luckily, the best practices for web accessibility in WordPress website development and the best practices for search engine optimization (SEO) often overlap.

Legal Compliance

Many countries have regulations mandating a certain level of web accessibility for public websites. For eCommerce and government websites in particular accessibility is crucial to ensure, so that everyone can access and interact with them.

This doesn’t mean that a personal website or blog can ignore web accessibility standards. Depending on where your business is located, the web accessibility laws and policies differ and may vary for the WordPress web development projects you’re working on.

Moreover, a website that isn’t fully accessible could result in legal action against the website developer, not just the owner, under the Americans with Disabilities Act (ADA).

ADA Title III Website Accessibility Lawsuits

ADA Title III Website Accessibility Lawsuits in Federal Court 2017-2020. Source: Seyfarth

Update – 2025: The legal pressure has increased significantly. According to ADA Title III tracking data, 3,117 federal website accessibility lawsuits were filed in 2025 alone, a 27% increase over 2024. Website accessibility cases now account for 36% of all ADA Title III federal filings.

The European Accessibility Act (EAA) also crossed a major milestone. As of June 28, 2025, it is actively enforced across EU member states. New products and services must comply now. Existing services have a transition period until June 28, 2030, but enforcement is no longer a future concern. It is happening.

Brand Reputation

Incorporating accessibility best practices in WordPress website development isn’t just important for legal and business reasons, it’s also the socially responsible thing to do. Prioritizing accessibility in websites not only represents a company’s values but also positively influences how people view the business.

Best Practices for Developing Accessible WordPress Websites

WordPress is already quite accessible, making it a solid foundation for creating inclusive websites. It’s also continuously evolving as the significance of accessibility grows. For example, within the WordPress theme directory, you can find themes labeled as “accessibility ready”.

However, you can’t rely on the WordPress platform alone to ensure a website is accessible. So here are some basic considerations for designing, writing, and coding for accessibility in WordPress website development.

Best Practices for Content Accessibility

  • Use descriptive alternative text (alt text) for images that describe their purpose in the context of the page or post. For purely decorative graphics, leave alt tags empty. If you’re unsure if your image needs an alt attribute, check this alt decision tree.
  • Ensure that links are underlined, and provide clear and descriptive information about the destination.
  • Include captions for videos and transcripts for audio content to accommodate users who are not able to listen to the audio format.
  • Use a clear heading structure with a hierarchy from the most important (H1) to the least important (H6). Don’t skip heading levels (e.g. from h2 to h4), which commonly happens due to styling purposes.
  • Ensure forms have their associated labels positioned above or on the left of them, as it will be understandable for most users, including those using left-to-right languages. Also, keep in mind that some fields, like phone numbers, that are commonly marked as required, might not apply to all users, due to them not being able to use this form of communication.

Design Accessibility Best Practices

  • Use fonts that are easy to read, especially for users with visual impairments. Consider using sans-serif fonts like Arial, Helvetica, or Calibri, as they are most likely to be accessible to all users.
  • Choose color schemes with sufficient color contrast for readability, especially for users with low vision or color blindness. Use a color contrast checker and aim to reach a contrast that meets at least AA levels according to WCAG guidelines.
  • Implement responsive design for seamless usability across different devices and screen sizes. This ensures that content adjusts and displays appropriately for users accessing the website on smartphones, tablets, or desktops.
  • Avoid relying solely on color to separate sections or convey information, as people with visual impairments may not be able to perceive the color differences. Instead, use visual cues such as shapes, icons, borders, or patterns to communicate information more effectively. Additionally, blue is considered the safest hue, that’s colorblind-friendly.

Best Practices for Development Accessibility

  • Use semantic HTML tags to enhance screen reader compatibility and improve the overall accessibility of your website. Semantic tags provide context to assistive technologies, enabling users to navigate and understand content more effectively.
  • While ARIA (Accessible Rich Internet Applications) attributes can be valuable for enhancing accessibility, they should not be used as a substitute for proper HTML elements unless absolutely necessary.
  • Ensure that all interactive elements and functionalities on your website are accessible via keyboard navigation. If you want to add a feature that is not keyboard accessible, find another way to achieve the same result or leave it out altogether.
  • Avoid using overlay plugins that allow users to adjust text size, contrast, and other elements on a page, as they often block accessibility rather than improve it. It’s better to build accessibility into your site from the start, rather than relying on plugins later on. Plus, many users with disabilities already have similar tools on their computers, which may clash with those plugins.

Most common Web Content Accessibility Guideline (WCAG) failures in websites. Source: WebAIM

In an effort to make websites stand out, developers, designers, and content writers often make them very complex. This leads to small mistakes like not adding a link to buttons or alternative text for images, which makes the website less accessible. To avoid this, remember to follow these best practices for developing inclusive WordPress sites.

A note on WCAG 2.2: the current standard

When this article was first published, WCAG 2.1 was the widely referenced baseline. That has since changed.

WCAG 2.2 became an official W3C Recommendation on October 5, 2023. It introduces nine new success criteria on top of everything in WCAG 2.1. The additions focus on:

  • Focus visibility improvements for keyboard users
  • Minimum touch target sizes for mobile usability
  • Stronger cognitive accessibility requirements
  • Alternative authentication methods that do not rely on memory or transcription
  • Preventing data loss when users take too long on forms

If your clients are aiming for AA compliance, WCAG 2.2 AA is now the standard they should be working toward. Content that conforms to WCAG 2.2 also conforms to WCAG 2.0 and 2.1, so existing work is not wasted.

WCAG 3.0 is also in development. It takes a different structural approach to measuring compliance and is expected after 2026. Worth keeping an eye on, but not yet a compliance target.

Web Accessibility in the Age of AI

AI tools are now part of how people browse, search, and interact with content online. That changes some of the stakes around accessibility in ways that are worth understanding.

AI assistants read what screen readers read. Voice interfaces and AI-powered search tools rely on the same underlying structure as screen readers: semantic HTML, proper alt text, logical heading order. If your site’s markup is weak, AI assistants have less to work with too. Good accessibility and good AI search visibility pull in the same direction.

AI-generated content still needs an accessibility review. If your team uses AI tools to write copy, generate images, or build page sections, those outputs need the same checks as anything produced manually. AI does not automatically write useful alt text, build logical heading structures, or label form fields correctly. Someone still needs to review the output.

Chatbots and AI widgets need their own accessibility pass. More WordPress sites are adding AI chat interfaces and smart search features. These need to be keyboard-navigable, screen reader-friendly, and operable without a mouse. They are interactive elements like any other, and they need to be tested the same way.

Automated AI tools can help, but only so far. Several tools now use AI to scan pages and flag accessibility issues automatically. They are useful for catching the obvious failures quickly. But the WebAIM Million 2025 report reflects only what automated checks can detect. Manual testing with real assistive technologies remains necessary for anything beyond the surface level.

Integrating Accessibility into the WordPress Development Workflow

Ensuring a WordPress website is accessible should be an integral part of the development process. Here’s how you can seamlessly integrate accessibility assurance into your workflow.

  • If you’re using page builders to develop a WordPress website, make sure they support web accessibility, and allow you to create an accessible content structure from the start. For instance, WPBakery Page Builder simplifies the process of creating responsive layouts, adding accessible content elements, like keyboard-navigable carousels and sliders, and more.
  • Create a checklist following the WCAG guidelines, which categorize success criteria into three conformance levels – A (lowest), AA (mid-range), and AAA (highest). While not every website needs to meet AAA standards, it’s recommended for business sites to aim for AA compliance. Make sure to use this checklist during development and testing to meet the accessibility standards.
WCAG checklist example for web accessibility

WCAG checklist example for web accessibility. Source: Accessible

  • Ensuring accessibility in a WordPress website is a team effort. It’s crucial to emphasize that accessibility involves design, development, and content management working together, and no one person can address all aspects alone. So encourage all people involved in developing a website to prioritize accessibility in their respective tasks.
  • After handing off the website to the client, educate them about the significance of accessibility and the measures implemented to ensure compliance. Offer ongoing accessibility maintenance services to assist clients in maintaining accessibility standards over time.
  • In addition to privacy policies and legal disclaimers, encourage clients to include an accessibility statement on the website. The accessibility statement communicates the company’s commitment to accessibility, provides users with information on how to access accessibility features, and allows them to report accessibility issues.
  • Conduct regular accessibility testing of a website using a combination of automated tools, like Lighthouse, and manual testing using assistive technologies. Regularly testing the accessibility of a site will help you identify and address potential barriers or issues that may impact users with disabilities.

Web Accessibility Resources for WordPress Developers

As someone who’s involved in WordPress web development projects, it’s important to educate yourself on the guidelines and ever-evolving legal compliances. These resources will help you gain insights into web accessibility, allowing you to create digital experiences that are inclusive and accessible to all users.

“If you have to wonder if your site is accessible, then it certainly is not. Go learn!” – Anne-Mieke Bovelett.

Guidelines for Web Accessibility

Accessibility Courses & Training

Accessibility Conferences & Events

Recommended plugin: One Accessibility by BDthemes

For agencies and site owners who need to add an accessibility layer to existing WordPress sites without rebuilding them, One Accessibility by BdThemes is a tool worth considering.

The plugin adds a fully customizable accessibility toolbar to any WordPress site. Visitors can adjust contrast, scale fonts, enable keyboard navigation, activate screen reader optimization, pause animations, and more. All of this happens at the browser presentation level. It does not restructure your existing layouts or touch your theme.

That matters for WPBakery users specifically. WPBakery is compatible with One Accessibility’s accessibility layer. It works cleanly on top of any WPBakery build, whether the site was built six months ago or six years ago. No page restructuring, no theme changes, no disruption to existing layouts.

Here is what the plugin covers:

  • Contrast and color adjustments for users with low vision or color blindness
  • Font scaling and dyslexia-friendly font options
  • Keyboard navigation support and screen reader optimization
  • Cursor customization, animation pause, and image hiding
  • User profiles for specific disability types, including motor impairment, ADHD, color blindness, and seizure safety
  • Text-to-speech, dictionary tooltips, and multilingual accessibility

For agencies managing large portfolios of client sites, the operational case is straightforward. You can install, configure, and hand it off to a client in under an hour. Clients get an accessibility layer that helps move the site toward WCAG 2.1 AA compliance without a rebuild.

One important note: One Accessibility works best alongside a site that is already built with solid accessibility fundamentals. Structural issues like missing semantic HTML, poor heading hierarchy, or unlabeled form fields need to be fixed at the source. The plugin is a strong complement to foundational work, not a shortcut around it.

Conclusion

Web accessibility isn’t just something that’s nice to have; it’s a necessity. The legal landscape has made that clearer than ever, with thousands of lawsuits filed each year and the European Accessibility Act now actively enforced.

Remember that there is no such thing as a 100% accessible website. As websites are regularly updated and maintained by multiple people, and the nature of disabilities is different, the goal is to make the website accessible to the majority of users.

So, instead of trying to achieve perfection, break tasks into manageable steps and communicate with your team and client about the necessary actions for developing inclusive WordPress sites. Start with the six most common failures from the WebAIM report. Build your heading structure properly. Check your contrast ratios. Label your form fields. Those steps alone put a site ahead of nearly 95% of the web.

Nikola
A marketing person, who believes the limit for daily coffee consumption does not exist.