Web Performance & Accessibility

11/11/2026
Diagnose slow or difficult-to-use websites and improve performance, accessibility and reliability.

How to Make Website Cookie Notices Work With a Keyboard

A cookie notice can block page content or trap focus if its buttons and preferences are not reachable by keyboard. Users need a clear way to review choices and continue. What to check Test opening, reading, changing preferences, and dismissing the notice using keyboard alone. Check focus visibility, dialog semantics, Escape behavior, and return focus....

How to Check Whether a Website Link Has Clear Text Out of Context

Repeated labels such as “click here” can make it difficult to understand a link when links are read as a list or scanned without surrounding paragraphs. What to check Review link text on key pages and test with screen reader link lists. Ensure labels identify the destination or purpose, including when multiple links lead to different resources....

How to Check Whether an Accessible Name Matches a Website Button’s Purpose

A button may look clear but expose a vague or unrelated name to assistive technology, especially when icons or hidden labels are used. What to check Inspect the accessible name in browser tools and test with a screen reader. Check icon buttons, repeated actions, and controls whose visible text changes by state. Recommended next step Provide a concise...

How to Check Whether a Website Dialog Returns Keyboard Focus Correctly

When a modal dialog closes, keyboard users should return to the control that opened it. Lost focus can make the page difficult to navigate and obscure the next action. What to check Test open, tab, close, Escape, and return behavior with keyboard only. Check dialogs launched from repeated controls and validation flows. Recommended next step Restore...

How to Check Whether Website Error Text Explains How to Recover

An error message that only says something went wrong leaves users unsure whether to retry, correct a field, or contact support. Good recovery guidance can reduce confusion. What to check Review common failure states, identify what users can safely do next, and check whether messages appear near the affected control and remain available to assistive...

How to Check Whether a Website Form Is Usable Without a Mouse

A form may rely on pointer interactions for date pickers, validation, or custom controls. Keyboard users need a way to complete and correct every field. What to check Navigate the full form with keyboard only, including dropdowns, date entry, file controls, validation, and submission. Check visible focus and logical order. Recommended next step Fix...

How to Check Whether a Website Page Remains Usable With Text Spacing Changes

Users may adjust text spacing to improve readability. Fixed-height containers and clipped content can hide controls when letter, word, or line spacing changes. What to check Test key pages with increased text spacing and zoom. Check menus, dialogs, forms, buttons, and legal text for clipping or overlap. Recommended next step Allow content to reflow...

How to Check Whether a Website Status Message Is Announced to Screen Readers

A status message may appear visually after a save or error but remain silent to screen reader users. This can leave people unsure whether an action succeeded. What to check Trigger loading, success, and error states with a screen reader. Check live region semantics, focus behavior, message timing, and whether repeated updates are announced....

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