ARIA-labels, short for Accessible Rich Internet Applications, are crucial in web development for enhancing accessibility by providing descriptive text to elements that lack visible labels, such as icons and input fields. These labels ensure that screen readers and assistive technologies can accurately convey the purpose and functionality of interactive web elements to users with visual impairments. Effective implementation involves using native HTML elements where possible and employing ARIA attributes like aria-label, aria-labelledby, and aria-describedby strategically to avoid redundancy and ensure clarity. Testing across various devices and browsers is essential to maintain accessibility standards and compliance, as demonstrated by platforms like LambdaTest, which offer tools for validating ARIA-labels in real-world conditions. Common pitfalls include over-relying on ARIA for semantics or applying labels to non-interactive elements, which can lead to confusion for users relying on assistive technologies. By adhering to best practices and conducting thorough testing, developers can create more inclusive and accessible web experiences.