A website may look clear and straightforward to one visitor while presenting significant barriers to another. Small text, weak colour contrast, unclear form labels or navigation that only works with a mouse can prevent people from finding information or completing important tasks.
Website accessibility means designing and developing websites so that as many people as possible can perceive, understand, navigate and interact with them. This includes people with visual, hearing, physical and cognitive disabilities, as well as people experiencing temporary or situational difficulties.
Accessibility is not an optional finishing touch or a single feature that can be added after a website has been built. It is part of creating a thoughtful, usable website that does not unnecessarily exclude potential customers.
Jump To
- What Is Website Accessibility?
- Who Benefits From an Accessible Website?
- Why Website Accessibility Matters
- The Four Principles of Accessibility
- Common Website Accessibility Problems
- How to Improve Website Accessibility
- Accessibility Is an Ongoing Process
What Is Website Accessibility?
Website accessibility is the practice of removing barriers that make digital content difficult or impossible for some people to use.
An accessible website should allow visitors to:
- Read and understand its content
- Navigate without relying entirely on a mouse
- Use assistive technologies such as screen readers
- Identify links, buttons and form fields clearly
- Watch or understand multimedia content
- Enlarge text without breaking the page layout
- Complete enquiries, purchases and other important tasks
Accessibility applies to both the visible design and the underlying code. A page can look attractive while still being difficult for a screen reader or keyboard user to navigate.
Equally, a technically compliant page may still be confusing if its instructions, menus or forms are poorly written. Good accessibility brings design, development and content together.
Who Benefits From an Accessible Website?
Accessible websites support people with a wide range of needs and circumstances.
People With Visual Impairments
This can include people who are blind, partially sighted or colour blind. They may use screen readers, magnification software, enlarged text or customised colour settings.
Clear headings, descriptive alternative text, sufficient contrast and properly labelled controls can make content much easier to understand.
People With Hearing Impairments
People who are deaf or hard of hearing may be unable to access information delivered only through audio.
Accurate captions, transcripts and visible alternatives to audio alerts help make videos, podcasts and interactive content more inclusive.
People With Physical or Motor Disabilities
Some visitors cannot use a mouse or precisely select small buttons. They may rely on a keyboard, switch device, voice control or other assistive technology.
Interactive elements should therefore be easy to reach, clearly highlighted and large enough to use without demanding precise movements.
People With Cognitive or Learning Disabilities
Complicated instructions, inconsistent navigation and dense blocks of text can make a website difficult to follow.
Plain language, predictable layouts, descriptive headings and clear feedback can help visitors understand what to do next.
People Experiencing Temporary or Situational Barriers
Accessibility improvements often help people who do not consider themselves disabled.
Someone may be using a phone in bright sunlight, watching a video without sound, navigating with an injured hand or trying to complete a form while distracted. Larger controls, captions, strong contrast and straightforward instructions can improve all of these experiences.
Why Website Accessibility Matters
It Prevents People From Being Excluded
Your website may be the first or only way someone can research your business, compare services, make a purchase or request support.
When important content or functionality is inaccessible, that person may have no practical way to continue. This can be particularly serious for websites providing healthcare, housing, financial, educational or public information.
It Creates a Better Experience for Everyone
Many accessibility improvements are also signs of good general usability.
Clear navigation, readable text, useful form labels, descriptive links and well-structured content make a website easier for everybody to use. They can also improve the experience on smaller screens and slower connections.
It Can Reduce Lost Enquiries and Sales
A visitor who cannot read a page, operate a menu or complete a form is unlikely to become a customer.
Accessible web design removes avoidable obstacles from the journey between arriving on the website and taking action. It does not guarantee a sale, but it gives more people a fair opportunity to understand the offer and respond.
Businesses Have Legal Responsibilities
In Great Britain, the Equality Act 2010 protects disabled people from discrimination and places responsibilities on organisations providing goods, facilities and services. Depending on the circumstances, this can include making reasonable adjustments so disabled people are not placed at a substantial disadvantage.
Public-sector organisations are also subject to specific website and mobile application accessibility regulations, including requirements relating to accessibility standards and published accessibility statements.
The precise legal position depends on the organisation, service and circumstances. Businesses with concerns about their obligations should obtain appropriate legal advice rather than relying on a general website article.
The Four Principles of Accessibility
The Web Content Accessibility Guidelines, usually known as WCAG, organise accessibility around four main principles. Content should be perceivable, operable, understandable and robust.
Perceivable
People must be able to perceive the information being presented.
This includes providing text alternatives for meaningful images, captions for spoken video content and sufficient contrast between text and its background.
Operable
Visitors must be able to operate the website and move through its content.
Menus, forms, buttons and other interactive features should work without requiring a mouse. Keyboard focus should also be clearly visible so the visitor knows which element is currently selected.
Understandable
Content and functionality should behave in a clear and predictable way.
Instructions should be straightforward, navigation should remain consistent and forms should explain errors in a way that helps the visitor correct them.
Robust
The website should be built using reliable code that works with different browsers, devices and assistive technologies.
Using appropriate HTML elements and correctly identifying controls helps software understand the purpose and structure of the page.
Common Website Accessibility Problems
Accessibility barriers are not always obvious during an ordinary visual review. Some of the most common problems include:
- Text with insufficient contrast against its background
- Images containing important information without suitable alternative text
- Forms without clear labels or useful error messages
- Menus and pop-ups that cannot be operated by keyboard
- Missing or poorly ordered headings
- Buttons and links with vague labels such as “click here”
- Videos without captions or transcripts
- Text embedded inside images
- Small controls that are difficult to select
- Animations that cannot be paused
- Layouts that break when text is enlarged
- Important messages communicated through colour alone
A website does not need to look plain or identical for every visitor. The aim is to ensure that the design choices do not prevent people from accessing the content or completing essential tasks.
How to Improve Website Accessibility
Use a Logical Heading Structure
Headings should describe the content that follows and form a sensible hierarchy. They should not be selected purely because of their visual size.
A clear structure helps sighted visitors scan the page and allows screen reader users to move between sections more efficiently.
Provide Useful Alternative Text
Alternative text should explain the purpose of a meaningful image within its particular context.
It does not need to list every visual detail. Decorative images can often use empty alternative text so they do not create unnecessary noise for screen reader users.
Check Colour Contrast
Text, buttons, form controls and important icons need enough contrast to remain distinguishable from their backgrounds.
Colour should not be the only way information is communicated. For example, a form error should include a written explanation rather than relying solely on a red border.
Make the Website Keyboard Accessible
A visitor should be able to reach and operate menus, links, buttons, forms, pop-ups and other interactive features using a keyboard.
The selected element should have a visible focus indicator, and the order should follow a logical journey through the page.
Write Descriptive Links and Buttons
Link text should explain where the link leads or what will happen when it is selected.
Labels such as “View Our Web Design Services” or “Request a Quotation” are more informative than repeated links saying only “Read More” or “Click Here”.
Build Clear and Forgiving Forms
Each field should have a visible label and any required format should be explained before the visitor submits the form.
When an error occurs, the message should identify the affected field and explain how to correct it. Previously entered information should not disappear unnecessarily.
Add Captions and Transcripts
Videos containing speech should include accurate captions. Audio-only content may require a transcript so the same information is available in another format.
Automatically generated captions can be a useful starting point, but names, technical terms and punctuation should be checked before publication.
Test Beyond Automated Scores
Automated accessibility tools can identify issues such as missing labels, contrast failures and some structural errors. They cannot determine whether every instruction is understandable or whether an entire user journey makes sense.
Useful testing can include:
- Navigating the website using only a keyboard
- Checking pages at increased text sizes
- Reviewing the site at different screen widths
- Testing forms and error messages
- Using appropriate screen reader testing
- Involving disabled users where practical
An accessibility widget or overlay should not be treated as a substitute for improving the underlying website. A toolbar may offer useful preferences, but it cannot automatically correct every problem in the design, content and code.
Accessibility Is an Ongoing Process
A website can become less accessible over time as new pages, plugins, forms, videos and design features are added.
Accessibility should therefore form part of ongoing content reviews and website maintenance. Editors should understand how to use headings, write alternative text, create descriptive links and avoid introducing inaccessible colour combinations or layouts.
It is also important to be honest about limitations. Accessibility is a broad and developing area, and a single automated score cannot prove that every person will be able to use every feature without difficulty.
Make Your Website Easier for More People to Use
Website accessibility is ultimately about removing avoidable barriers. It supports disabled people, improves everyday usability and helps more visitors reach the information or service they need.
The best results come when accessibility is considered throughout the design, development and content process rather than being added as an afterthought.
To discuss accessibility improvements for an existing website or include them within a new project, contact Athena Media for straightforward advice about the next steps.
