Core Web Vitals Tools
Browse Core Web Vitals tools. Apply filters to refine results.
⭐ Featured Core Web Vitals Tools
Next/Image
Framework component for Next.js that automatically optimizes images for improved LCP and CLS
Preact
Fast 3kB alternative to React with the same ES6 API, significantly improving bundle size and speed
Sentry Performance
Monitoring tool that links code errors to performance regressions in Core Web Vitals
All Core Web Vitals Tools
Showing 60 tools
Sentry Performance
Monitoring tool that links code errors to performance regressions in Core Web Vitals
Cloudflare Early Hints
Speeds up page loads by sending hints to browsers about critical assets before the full response
Cloudflare Observatory
Integrated performance suite within Cloudflare that monitors and optimizes Web Vitals for sites
ImageEngine
Content Delivery Network specializing in real-time image resizing and device-specific optimization
Perfmatters
Lightweight WordPress optimization plugin that focuses on disabling unnecessary scripts to speed up sites
TwicPics
Real-time image and video processing service that optimizes media delivery for better CWV
Web Vitals Vercel Integration
Automated dashboard specifically for Next.js users to track field data for Core Web Vitals
Next/Image
Framework component for Next.js that automatically optimizes images for improved LCP and CLS
Preact
Fast 3kB alternative to React with the same ES6 API, significantly improving bundle size and speed
Fastify
Extremely fast and low overhead web framework for Node.js, built for performance
Web Vitals Library
A tiny modular library for measuring all the Web Vitals metrics on real users in the field
Critical
Extracts and inlines critical-path CSS to improve First Contentful Paint and rendering speed
PurgeCSS
Tool to remove unused CSS from your project which helps in improving Largest Contentful Paint (LCP)
Web Vitals Extension
Chrome extension for measuring Core Web Vitals in real-time while browsing your website
Lighthouse CI
Automated tool to run Lighthouse in CI/CD pipelines to prevent performance regressions during deployment
SiteSpeed.io
Open-source tool suite that helps you measure and monitor the performance of your web pages
Critters
A Webpack plugin to inline your critical CSS and lazy-load the rest to improve FCP
Boomerang
A JavaScript library that measures the performance of your website from the user's experience
HTTP Archive
A collaborative effort to track how the web is built, providing deep data on performance trends
Akamai CloudTest
Scale testing for websites to see how performance and CWV hold up under massive traffic spikes
Akamai Page Integrity
Protects user experience by monitoring and managing script behavior that could impact performance
Akamai mPulse
Real User Monitoring (RUM) that collects performance data from actual visitors to diagnose CWV issues
Calibre
Comprehensive performance monitoring platform with automated reporting and budget alerts for teams
CloudFront Functions
Lightweight edge functions to manipulate requests and improve performance at the edge
Cloudinary Website Speed Test
Image-centric performance audit tool that identifies how media assets affect Core Web Vitals
CrUX Dashboard
Data Studio dashboard for visualizing the Chrome User Experience Report performance history
Datadog RUM
Comprehensive enterprise observability including Core Web Vitals tracking for real user sessions
Fastly Performance Optimizer
Edge-based image and code optimization services to minimize latency and improve CWV
GTmetrix
Popular performance analysis tool providing detailed grades and recommendations for speed improvements
Gatsby Cloud (Netlify)
Optimized platform for Gatsby sites that automatically handles many Core Web Vitals requirements
ImageOptim
Desktop application that optimizes images to reduce load times and improve LCP and overall speed
MobiReady
Testing tool specifically designed to check website performance and mobile-readiness for CWV compliance
New Relic Browser
Real-time insights into frontend performance and user experience with deep CWV support
Pingdom Speed Test
Reliable web performance testing tool providing a breakdown of page load times from global locations
Quic.cloud
CDN specifically optimized for WordPress and LiteSpeed servers to maximize CWV scores
SolarWinds Pingdom
Enterprise-grade uptime and performance monitoring that includes Core Web Vitals alerting
Treo Site Speed
Field data explorer using CrUX data to track real-user performance metrics over time
Uptrends Page Speed
Continuous monitoring of Page Speed and Core Web Vitals from various global checkpoints
Zabbix Performance
Enterprise monitoring solution that can be configured to track website performance metrics
Crux.vis
A clean dashboard for visualizing your domain's historical Chrome User Experience Report data trends
CLS Visualizer
Chrome extension that overlays Cumulative Layout Shift areas directly on your webpage
BatchSpeed
Batch testing tool for Lighthouse and PageSpeed Insights to analyze multiple URLs simultaneously
ContentVis
Visual tool to identify which DOM elements are causing Cumulative Layout Shift (CLS) during load
Experte.com Bulk Speed Test
Tool for testing Core Web Vitals and PageSpeed for hundreds of URLs simultaneously
Layout SERP
Specialized tool for simulating and fixing Cumulative Layout Shift (CLS) issues on mobile and desktop
PageSpeedPlus
Bulk PageSpeed Insights testing and monitoring with automated reports for SEO agencies
Preload Checker
Analyzes critical assets and suggests preload/preconnect hints to improve FCP and LCP
Request Metrics
Simple real-user monitoring (RUM) that alerts you when your site becomes slow for actual visitors
Specto
Performance monitoring for mobile apps, ensuring that web views and native elements are fast
SpeedVitals
Advanced Web Vitals testing tool with support for various devices and locations across the globe
WebVitals.dev
Simple testing playground to check how specific code snippets affect Core Web Vitals metrics
Grip
Command-line tool for visualizing how GitHub Readmes look, but often used for performance profiling local docs
Instant.page
Small script that preloads links on hover to make page navigation feel instantaneous for users
Perfume.js
Telemetry library for measuring First Paint, LCP, and FID and reporting them to your analytics
Bundlewatch
Monitor your app's bundle size in your PRs to ensure performance doesn't degrade over time
Yellow Lab Tools
Open-source online test that detects performance smells and front-end code quality issues
Web Vitals Report
A tool that generates a visual report of your site's performance using GA4 data
Font-Style-Matcher
Tool to help align fallback fonts with web fonts to reduce Cumulative Layout Shift (CLS)
Request Map
Tool that visualizes third-party requests and their impact on site performance and load times
Lighthouse Metrics
A web tool that runs Lighthouse from different regions to see global performance variations