Which of the following tools is typically used to test web accessibility?

Accessibility checking software is specifically designed to evaluate websites for compliance with accessibility standards and guidelines. These tools automate the detection of accessibility issues, such as missing alt text for images, improper heading structure, color contrast problems, and other criteria outlined in standards like WCAG (Web Content Accessibility Guidelines). They provide insights and recommendations that help developers and content creators improve the usability of websites for individuals with disabilities.

In contrast, text editors are primarily used for writing and editing code but do not inherently offer features to assess accessibility. Image editing software focuses on graphic design and manipulation rather than web accessibility testing. Content management systems (CMS) are platforms for managing digital content but may not directly incorporate built-in tools for thorough accessibility testing, although some may offer plugins or integrations with accessibility checking software. Thus, accessibility checking software stands out as the primary tool for assessing and improving a website's accessibility.