Web Performance Optimization
266 items from davidsonfellipe/awesome-wpo ★9,117
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User Timing w3.org
This specification defines an interface to help web developers measure the performance of their applications by giving them access to high-precision timestamps.
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Resource Timing w3.org
This specification defines an interface for web applications to access the complete timing information for resources in a document.
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Navigation Timing Level 2 (W3C) w3.org
Use responseStart and requestStart to derive Time to First Byte (TTFB).
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Tinypng tinypng.com
Advanced lossy compression for PNG images that preserves full alpha transparency.
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Pingdom pingdom.com
A tool to get the uptime of your website (with probes from different locations).
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Pingbreak.com pingbreak.com
Free site and SSL Monitoring with response time alerting (on Slack, Twitter, Mattermost, Discord or custom Webhook).
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Web Components in Action manning.com
Ben Farrell.
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Locust locust.io
An open-source load testing tool. Define user behaviour with Python code, and swarm your system with millions of simultaneous users.
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Lightest App lightest.app
Webpage load time is extremely important for conversion and revenue. Visualize web performance against competitors.
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Apache JMeter jmeter.apache.org
Open source load testing tool: It is a Java platform application.
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SVG OMG jakearchibald.github.io
SVGOMG is SVGO's Missing GUI, aiming to expose the majority, if not all the configuration options of SVGO.
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ImageKit.io imagekit.io
Intelligent real-time image optimizations, image transformations with a global delivery network and storage.
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Disc hughsk.io
Visualise the module tree of browserify project bundles and track down bloat.
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Designing for Performance: Weighing Aesthetics and Speed designingforperformance.com
Lara Hogan.
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Bundlephobia bundlephobia.com
Helps you find the performance impact of adding an npm package to your frontend bundle.
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SWC swc.rs
Fast JavaScript and TypeScript compiler and minifier; significantly faster than Babel/Terser for transpilation.
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ImageOptim imageoptim.com
Compress images and remove EXIF information.
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Prettyugly github.com
Uglify (strip spaces) or prettify (add consistent spaces) CSS code.
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PHP-httperf github.com
PHP Port of HTTPerf.rb.
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Gohttperf github.com
Go Port of HTTPerf.rb.
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Lasso-analyzer github.com
Analyze and visualise project bundles created by Lasso.
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SvgToCSS github.com
Optimizes and renders SVG files in CSS / Sass sprites.
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PerfTests github.com
Performance tests of JavaScript inheritance models.
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Redirect Checker github.com
Analyze HTTP redirect chains, detect loops, and measure performance impact on page load times.
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Yandex CDN yandex.ru
Yandex Content Delivery Network hosts popular third-party JavaScript and CSS libraries (best for use in Russia).
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We Love Speed welovespeed.com
Born from the desire to share knowledge and experiences in web performance as widely as possible.
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WebPerformance Report webperformancereport.com
Web performance report every week in your inbox. Get a Personalized Report on the Status of the E-commerce or Website that you want to monitor in terms of Web performance and Web optimization, Core Web Vitals are included.
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Code Splitting (Webpack) webpack.js.org
Official guide to splitting JavaScript bundles for faster initial load and on-demand loading.
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Google Developers Case Studies web.dev
Learn why and how other developers have used the web to create amazing web experiences for their users.
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Waterfall Tools waterfall-tools.com
Advanced client-side network request waterfall viewer for HAR, WPT JSON, Chrome traces/netlogs, and tcpdump captures.
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Navigation Timing w3c.github.io
This specification defines a unified interface to store and retrieve high resolution performance metric data related to the navigation of a document.
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Web Performance Working Group w3.org
The mission of the Web Performance Working Group, part of the Rich Web Client Activity, is to provide methods to measure aspects of application performance of user agent features and APIs.
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Performance Timeline w3.org
This specification defines a unified interface to store and retrieve performance metric data. This specification does not cover individual performance metric interfaces.
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Resource Hints w3.org
This specification defines the dns-prefetch, preconnect, prefetch, and prerender relationships of the HTML Link Element (<link>). These primitives enable the developer, and the server generating or delivering the resources, to assist the user agent in the decision process of…
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UptimeRobot uptimerobot.com
Another uptime monitoring tool (with a generous free plan).
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Trimage trimage.org
A cross-platform tool for losslessly optimizing PNG and JPG files.
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Pingdom site Speed Test tools.pingdom.com
Test the load time of that page, analyze it, and find bottlenecks.
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Third Party Analysis Tool tools.paulcalvano.com
Analyze third-party request risk, render-blocking impact, and potential single points of failure from WebPageTest runs.
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Web Font Analyzer tools.paulcalvano.com
Inspect font loading timing, payload, and glyph usage using WebPageTest data.
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Akamai mPulse Boomerang techdocs.akamai.com
Documentation for the Akamai mPulse version of Boomerang, which includes additions specific to interacting with mPulse.
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StatusList statuslist.app
Uptime, performance monitoring with debug details, and hosted status page in one simple dashboard.
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Sprite Cow spritecow.com
Get the background-position, width, and height of sprites within a spritesheet as copyable CSS.
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SpeedCurve speedcurve.com
Web performance monitoring combining synthetic testing, RUM, Lighthouse, Core Web Vitals, performance budgets, and competitive benchmarking.
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Socialite.js socialitejs.com
Socialite provides a very easy way to implement and activate a plethora of social sharing buttons — any time you wish. On document load, on article hover, on any event.
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Image Optimization smashingmagazine.com
Addy Osmani.
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Lean sites sitepoint.com
Barbara Bermes.
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Shortpixel shortpixel.com
Compress Your Image by removing unnecessary bytes of the image and Convert it into WebP/AVIF.
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RFC 9218: HTTP Prioritization rfc-editor.org
Protocol-level prioritization mechanisms for HTTP.
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ResponsiveImage responsive-image.dev
Generate optimized images (WebP, AVIF) and LQIP placeholders using Vite or Webpack plugins and render responsive image markup with an image component for multiple frameworks.
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RequireJS requirejs.org
JavaScript file and module loader. It is optimized for in-browser use, but it can be used in other JavaScript environments, like Rhino and Node.js.
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