Useful Website Testing Tools

A list of some of the useful website testing tools I tend to rely on for testing website speed, usability and accuracy. WAVE Web Accessibility Evaluation Tool WAVE^® is a suite of evaluation tools that helps authors make their web content more accessible to individuals with disabilities. WAVE can identify many accessibility and Web Content Accessibility Guideline (WCAG) errors, but also facilitates human evaluation of web content. It’s particularly handy for pointing out issues with forms and contrast issues.   Chrome DevTools, especially Lighthouse Chrome DevTools is a set of web developer tools built directly into the Google Chrome browser. The Lighthouse feature is a particularly helpful automated tool for identifying performance, quality and correctness issues.   W3C schools Markup Validation Service This validator checks the markup validity of Web documents in HTML, XHTML, SMIL, MathML, etc.   W3C schools CSS Validation service An invaluable tool for checking Cascading Style Sheets (CSS) and (X)HTML documents with style sheets.   JSHint / JSlint A pair of code analysis and review tools for JavaScript. JSHint is generally considered the more lenient of the two, LSLint is the sticker.   WebPageTest Once fully open source but this is no longer the case. It still supports free testing (at least at the time of writing) and can provide valuable feedback on speed, usability and resilience.