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NamePurposeURLTypeCost
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Google Mobile Friendly TestCheck Mobile friendliness and interstitials of a given pagehttps://search.google.com/test/mobile-friendlyWeb BasedFree
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Mobile-Friendly Test (Bulk Testing Tool)Uses Google's API, check if your pages are mobile-friendly or if they have mobile-usability errors. Bulk Mobile-Friendly test, up to 50 URLs at the time.https://technicalseo.com/tools/mobile-friendly/Web BasedFree
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Mesure from Web.devCheck Largest Contentful Paint and Cumulative Layout Shift from Core Web Vitals, HTTPs usage of a given pagehttps://web.dev/measure/Web BasedFree
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Web Vitals Chrome ExtensionCore Web Vitals of a given pagehttps://chrome.google.com/webstore/detail/web-vitals/ahfhijdlegdabablpippeagghigmibma?hl=enBrowser ExtensionFree
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PageSpeed InsightsCheck Core Web Vitals, Field and Lab data of a given pagehttps://developers.google.com/speed/pagespeed/insights/Web BasedFree
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Core SERP VitalsShow Core Web Vitals of ranked pages in SERPs from CrUX Report (Field Data)https://defaced.dev/tools/core-serp-vitals/Browser ExtensionFree
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Web Page TestWeb Page Performance Test of any Given Page including Core Web Vitalshttps://www.webpagetest.org/Web BasedFree
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Search Console (Core Web Vitals report)Show From CrUX Report (Field Data) from your site pageshttps://search.google.com/search-console/core-web-vitalsWeb BasedFree
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Chrome UX Report logoChrome UX Report Compare ToolCompare real-world performance of sites and URLshttps://crux-compare.netlify.app/Web BasedFree
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WattspeedContinously monitor Core Web Vitals for any pagehttps://wattspeed.com/Web Based and Browser ExtensionFree
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LighthouseCheck Core Web Vitals, Lab data of a given pagehttps://developers.google.com/web/tools/lighthouseChrome Dev Tools & Browser ExtensionFree
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PageSpeed Compare - Easy Page Speed BenchmarkingCompare performance metrics of your pages against each other or your competitors using Google PageSpeed Insights (Lab and Field Data).https://pagespeed.compare/Web BasedFree
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Site Speed Comparison ToolCompare site speed across results of a Google searchhttps://tools.sandboxweb.io/site-speed-comparison-toolWeb BasedFree
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Measure Core Web Vitals of your Websites with Google SheetsAutomatically measure Core Web Vitals for multiple websites.https://www.labnol.org/core-web-vitals-200819Google SheetsFree
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Treo Site SpeedFind out how fast your website is for real users. It's free and instant.https://treo.sh/sitespeed/Web BasedFree
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Layout Shift GIF GeneratorVisualise the Core Web Vitals metric Cumulative Layout Shift (CLS) with a simple GIFhttps://defaced.dev/tools/layout-shift-gif-generator/Web BasedFree
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Bulk Core Web Vitals Check Check up to 500 Pages of your site - whether from crawling your site, a specific list of URLs or pages ranking for a given keyword in Googlehttps://www.experte.com/web-vitalsWeb BasedFree
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Batch SpeedBulk speed test multiple urls using Google's Page Speed checkerhttps://batchspeed.com/Web BasedFree
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JitBit - Unused CSSThis free tool crawls your website for unused CSS selectors. It follows internal links recursively and looks on multiple pageshttps://www.jitbit.com/unusedcss/Web BasedFree
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Yellow LabFree and Open Source tool to check Web performance of any pagehttps://yellowlab.tools/Web BasedFree
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GTMetrixSee how your site pages perform, reveal why they're slow and discover optimization opportunities.https://gtmetrix.com/Web BasedFree
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SEOinfoA browser extension that highlights SEO configurations and issues of the browsed pages including Core Web Vitals metrics. https://www.weeblrpress.com/blog/seoinfo-our-free-chrome-and-firefox-extensionBrowser ExtensionFree
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Tame The Bots JavaScript & CSS Code UsageSee how much of each JavaScript & CSS file loaded on a page is actually used.https://tamethebots.com/tools/codecoverageWeb BasedFree
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Fast or SlowTest the speed of your site from different locations from all over the world, using PageSpeed Insights metricshttps://www.fastorslow.com/appWeb BasedFree
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DaretoboostWebsite Speed Test and Monitoring - Up to 5 pages for free per monthhttps://www.dareboost.com/enWeb BasedFreemium
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Screaming Frog SEO SpiderFreemium SEO Crawler (up to 500 URLs for free) offering PageSpeed Insights Integration – Lighthouse Metrics, Opportunities & CrUX Datahttps://www.screamingfrog.co.uk/seo-spider/Desktop BasedFreemium
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Do you want me to add any new free tool or resource? Send me a tweet to @aleyda
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