This document lists and describes 19 SEO tools for analyzing websites and search engine optimization. The tools include Google Page Speed Insights, Moz Local Listing Score, Keywordtool.io, Google Analytics, Google and Bing Webmaster Tools, Open Site Explorer, Google Keyword Planner, Google searches in Incognito mode, Google Trends, Quick Sprout Website Analyzer, Similar Web, SERPs Rank Checker, XML Sitemaps, SEO Site Checkup, Search Metrics Website Analyzer, Find Broken Links, Ahrefs’ Site Explorer and Backlink Checker, Copyscape, and the Moz toolbar. Each tool is briefly described in one to three sentences.