Agostina Demark

5 Screen Reader Testing Best Practices for Website Accessibility

So, you’re curious about how screen reader software really works, huh? Or maybe you want to know how users with assistive tech navigate your site. Perhaps you’re just ready to roll up your sleeves and dive into some hands-on testing to create truly accessible, high-quality digital experiences.

No matter your motivation, these five essential screen reader tests are non-negotiable. Just as you wouldn’t dream of excluding users out of the design process, you can’t overlook these in your testing. Let’s geek out!

1. Test for Proper Semantic Structure

Your headings (H1, H2, H3, etc.) and landmarks (nav, main, footer, header) form the skeleton of your site’s accessibility. Without them? Chaos. Screen reader users depend on this structure to logically navigate the content.

Use arrow keys to browse and hear which elements are announced and how. Or, if you’re feeling fancy, use keyboard shortcuts like the “H” key to jump to the next heading.

ProTip: Check if the structure makes sense and keeps your users’ journey seamless.

2. Ensure All Actionable Elements Are Properly Labeled and Announced

Every link and button must have a label that clearly states its purpose. There are no mystery buttons here! Labels should be descriptive enough that users know exactly what will happen when they interact with them.

Use the Tab key to navigate through all actionable elements on the page. Make sure each element is announced with both its label and type (e.g., link, button).

Pro Tip: If an element has a state—such as an accordion FAQ section—ensure the screen reader announces whether it’s collapsed or expanded.

3. Image Alt Text Validation

Alternative text, or alt attributes, for images are non-negotiable. Every important image should have alt text that informs users of what they need to know, while decorative images should be ignored with a simple alt="".

When a screen reader reaches an image, it’ll announce it as a graphic. If an image has no alt attribute, chaos ensues. For example, the screen reader might try to read the file name or URL (and trust me, nobody wants to hear “/image_12345.jpg”).

Your job? Make sure informative images have useful alt text and decorative ones have none.

4. Live Regions – Real-Time Updates

Most screen reader users won’t perceive visual updates, so it’s up to you to make sure they know when something on the page changes. That’s where live regions (aria-live) come in. They’re like the announcers in a sporting event, calling out when something updates in real-time—like a success or alert message, or dynamic content.

Whether alert messages or dialog boxes appear, announce them when they do. Otherwise, screen reader users could miss crucial information.

5. Form Labels and Controls – Don’t Make Them Guess

When users tab through forms, they shouldn’t have to guess what each field is for or what’s required. Every form element should be labeled, and screen readers should announce not just the label but also the type of input (edit field, checkbox, radio button, etc.), its state (required, checked, disabled), and any related instructions or error messages.

There are two modes used for navigation with screen readers: browse mode and forms mode. Browse mode lets users navigate using shortcuts (e.g., “E” for edit fields or “H” for headings) and arrow keys. However, forms mode is where the real action takesplace.It is utilized to actually fill out forms—making the tab key essential. In this mode, letters are for typing, not shortcuts.

Now that you have these five tests in your accessibility arsenal, you are prepared to make a real difference. Consider accessibility testing as essential, not optional.

You wouldn’t build a house without inspecting the foundation orputting ina door, right? So why would you release digital products without making sure they work for everyone?

Accessibility is about creating experiences that all users can enjoy—not just a few. So go ahead, activate that screen reader software, learn it, and start making the web a better, more accessible place for everyone!