Validates website health across performance, accessibility, SEO, and security dimensions using 11 integrated testing tools.
Webby is a comprehensive Model Context Protocol (MCP) server designed for robust website validation. It integrates 11 powerful tools to thoroughly assess web assets across critical areas: performance (WebPageTest, Google PageSpeed Insights, GTmetrix), accessibility (Axe DevTools, WAVE), SEO (PageSpeed Insights SEO), and security (Mozilla Observatory, SSL Labs). Many integrated tools offer generous free tiers and Webby leverages Playwright for browser automation, eliminating API key requirements for several key tests like WebPageTest and Axe.