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Visualizer the CLS of any webpage This plugin will highlight and visualize the Cumulative Layout Shift. Cumulative Layout Shift (CLS) is an important, user-centric metric for measuring visual stability because it helps quantify how often users experience unexpected layout shifts—a low CLS helps ensure that the page is delightful. Unfortunately the CLS is a pain to debug without visualisation
Core SERP Vitals
Show the Core Web Vitals data from the Chrome User Experience Report in the Google Search Results. Show real world Core Web Vital data from the Chrome User Experience Report in the Google Search Results. Displays LCP, FID, CLS (and the experimental INP and TTFB) metrics underneath the page links in the Google SERP where data is available in the CrUX report. * Note: Requires a free API key for the Chrome UX Report API. * https://developers.google.com/web/tools/chrome-user-experience-report/api/guides/getting-started Updates: Version 1.3.0 - Now displays the experimental INP and TTFB metrics.
SpeedVitals
SpeedVitals Extension helps you perform the Web Vitals Speed Test and TTFB Test on any website directly from your browser. SpeedVitals is a free Web Performance measurement tool that uses Lighthouse to measure Lab Data and Chrome's User Experience API (CrUX) to measure field data. 1) Web Vitals: Measure all the Web Vitals such as First Contentful Paint (FCP), Largest Contentful Paint (LCP), Cumulative Layout Shift (CLS), First Contentful Paint (FCP), Time to Interactive (TTI), and Speed Index (SI). We also measure some other metrics like Server Response Time (TTFB) and Web Page Size. 2) TTFB Testing: Measure TTFB (Time to First Byte) from 40 locations across the globe 3) Multi-Device Testing: Measure your Website's Performance across more than 30 devices having different Form Factors 4) Multi-Location Testing: Run Core Web Vitals test on more than 35 locations across the globe including United States, United Kingdom, India, Japan, Australia, Germany, Brazil, South Korea, and more. 5) Field Data: View the real-world Core Web Vitals data of any Web Page using Chrome's User Experience API. 6) Resource Graphs: Resource Graphs give a visual representation of Web Page resource distribution. 7) Waterfall Chart: Waterfall Chart provides a visualization of the load timings with metrics like Blocking Time, DNS Lookup Time, TCP Connect Time as well as HTTP Request/Response Header information. 8) Layout Shift Visualizer: Layout Shift Visualizer presents a GIF of Cumulative Layout Shift (CLS) and helps diagnose the cause behind the shift 9) Code Coverage: Code Coverage helps identify the resources (CSS/JavaScript) with unused code segments 10) SpeedVitals Pro Tips: SpeedVitals Pro Tips is an advanced curated list of factors that can dramatically speed up a Web Page. It also includes advanced platform-specific tips for CMSs like WordPress
AMP Validator
Automatically checks each page for AMP validation. The AMP Validator will check the current page to see if it is an AMP page and then run it through the AMP validator and report if the page passes (green) or fails (red) via the extension icon. If there are any warnings or errors it'll list the number underneath the extension icon and clicking the icon will display the warnings and/or errors. If the current page is not an AMP page and one is available via the extension icon turns blue and clicking it will load the AMP version of that page. By installing this item, you agree to the Google Terms of Service and Privacy Policy at https://policies.google.com/.
Schema Builder for Structured Data
Easily build validated json-ld structured data markup for any webpage. Based on schema.org specification Generating structured data markup for your webpages doesn't have to be hard! No more having to learn each Schema type, which elements are required vs. recommended or worrying about errors and issues. Schema.dev's Schema Builder makes it as simple as point and click to generate the perfect JSON-LD structured data for dozens of Google supported Schema types! and all for FREE! ============================================= Be sure to view the initial training video for fastest time to value. https://videos.seoclarity.net/video/kazj73n005plxgv61 ============================================= Simply enable the plugin, choose the schema markup you'd like to add and then populate the form using the point and click capabilities or manual input. Already have schema markup on your webpages? The built-in Schema testing tool helps validate your schema markup and shows errors and warnings. Key Features - Updated March 2nd, 2025 ================================== + NEW! Support for Vehicle Listing Markup + Support for 20+ Schema types - including ALL Google supported markups + Automatic detection of existing structured data + Point-and-click ease to populate schema fields + Intuitive UI that guides you through required, recommended and optional elements for each schema + Structured Data Testing capabilities built in for any schema markup generated + Intuitive UI to guide through required, recommended and optional elements NOTE: The plugin is in actively development - Join the forums at https://support.schema.dev for feedback, bugs and tips.
