Fast or Slow is a free website performance benchmarking tool developed by Wordfence, a renowned cybersecurity company known for its WordPress security plugin. The tool allows users to test their website's performance from 18 different locations worldwide, utilizing multiple headless Chrome browser instances, and returns the results within a few seconds. It provides a comprehensive analysis of a website's performance, including Google's Core Web Vitals metrics such as Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS).
Fast or Slow is designed for web developers, site owners, and digital marketers who need to optimize their website's performance for better user experience and search engine ranking. By identifying performance bottlenecks and areas for improvement, users can take data-driven decisions to enhance their website's speed and overall performance.