Why Accessibility is Ongoing
Why Accessibility Is Not a One-Time Project
It is common to think of website accessibility as something that can be addressed during the design and development phase of a project and then considered complete.
In practice, accessibility does not work this way.
Websites change over time, and those changes can affect how accessible the site remains. For this reason, accessibility is generally understood as an ongoing process rather than a one-time task.
Websites Are Constantly Evolving
Most websites are not static. After launch, they continue to grow and change through:
- Content updates
- New pages or sections
- Design adjustments
- Feature enhancements
- Software and plugin updates
Each of these changes has the potential to introduce new accessibility issues, even if the original website was built with accessibility-aware practices.
Content Updates Can Introduce New Issues
One of the most common ways accessibility is affected is through everyday content updates.Examples include:
- Adding images without alternative text
- Using headings out of order or for visual styling
- Creating links without clear or descriptive text
- Uploading documents that are not accessible
These types of changes are often made by well-intentioned staff members who may not be familiar with accessibility considerations.
Third-Party Tools Can Change Over Time
Many websites rely on third-party tools and integrations, such as:
- Booking systems
- Payment platforms
- Maps and location services
- Chat widgets and forms
These tools are updated independently by their providers. Changes to these systems can impact accessibility without any direct changes to the website itself.
Technology and Standards Continue to Evolve
Accessibility is also influenced by ongoing changes in:
- Web technologies
- Browsers and devices
- Assistive technologies
- Guidelines such as the Web Content Accessibility Guidelines
As these evolve, what is considered accessible today may need to be revisited in the future.
Ongoing Maintenance Is Often Necessary
Because accessibility can change over time, maintaining it may involve:
- Periodic reviews of website content
- Updates to address newly identified issues
- Monitoring how the site performs across different devices and tools
- Adjusting workflows for content creation and publishing
This type of ongoing attention is similar to other aspects of website maintenance, such as security and performance.
Internal Processes Matter
Accessibility is not only a technical issue—it is also influenced by how content is created and managed within an organization.
Maintaining accessibility may involve:
- Training staff on basic accessibility practices
- Establishing content guidelines
- Reviewing new content before it is published
- Assigning responsibility for ongoing oversight
Without these types of processes, accessibility improvements made during development can gradually diminish over time.
A Practical Perspective
Understanding accessibility as an ongoing process helps set realistic expectations.
Rather than aiming for a single point of completion, many organizations focus on:
- Making meaningful improvements
- Reducing barriers over time
- Incorporating accessibility into regular workflows
This approach supports both usability and long-term sustainability.
Important Note
This page provides general information about how accessibility can change over time. It is not a guarantee of ongoing accessibility or compliance for any website.