Issue #58 coming September 22.

Issue #57 → Know that JAMstack is only fast when you make it so, minimise DOM reflows, test 404 page performance, use a high-performing 11ty blog template and more.

Issue #56 → Understand that performance is distribution, see the benefits of Browser Back/Forward caches, automatically optimise images in your Pull Requests and more.

Issue #55 → Learn how Performance Score is calculated, get to know speed-oriented CSS content visibility, use AVIF, see what contributes to CLS and more.

Issue #54 → Is your host fast yet, add Core Web Vitals tracking to Google Analytics, use Periodic Background Sync to get fresh data and more.

Issue #53 → Understand why we need better metrics for a11y, compare how sites perform based on JS frameworks, see if prefetch is causing slowdowns and more.

Issue #52 → Discover the future of HTTP, learn why to track Core Web Vitals, use WebP in Safari, make your apps accessible and more.

Issue #51 → Avoid the most common performance tracking mistakes, learn about the digital divide, prevent JavaScript memory leaks and more.

Issue #50 → Know how Web Vitals will affect your ranking, make Google Fonts really fast, learn how to use CrUX Dashboard and more.

Issue #49 → Start monitoring Core Web Vitals, learn how to correlate speed to conversions, see the impact of JavaScript frameworks and more.

Issue #48 → Reconsider tracking First Meaningful Paint, learn how to analyse and fix performance, use improved bundle chunking and more.

Issue #47 → See how the pandemic affects the internet, learn how to profile React.js performance, how Messenger shrunk by 84% and more.

Issue #46 → Learn how your Performance Score will change, understand performance metrics, consider environmental impact of code and more.

Issue #45 → Prepare for mobile-first indexing in Google, learn the speed impact of variable fonts, optimise your CSS Modules output and more.

Issue #44 → Quantify the impact of performance on revenue, lint performance in the browser, use Lighthouse in Firefox and more.

Issue #43 → Track performance in GitHub Pull Requests, reduce the size of your Angular bundle, slow down your internet and more.

Issue #42 → Design for performant imagery, discover and debug Node.js speed issues, avoid using slow SSL certificates and more.

Issue #41 → Learn about new generation of performance metrics, decide whether you should self-host Google Fonts, how eBay built a performance culture and more.

Issue #40 → Speed up your sites with advanced Service Worker strategies, leverage Adaptive Loading, build fast animations in React, prioritise users over developers and more.

Issue #39 → Establish long-term performance strategy, designing for performant typography, ensure your CSS-in-JS isn't slow and more.

Issue #38 → How to popularise performance, get started with modern web performance, implement fast ads, monitor JavaScript main thread task execution and more.

Issue #37 → Mitigate the performance impact of using live chat, learn how Discord made their iOS app fast, use remote data fetching for speedy interactions and more.

Issue #36 → Learn about critical performance announcements from Chrome Developer Summit, understand the state of performance in 2019, new metrics and more.

Issue #35 → Understand how performance affects user engagement, find out if JAMstack is really fast, learn the response limits for speed and more.

Issue #34 → Justifying performance using analytics, how performance choices affect usability, testing speed of Single Page Apps, Third Party tracking and more.

Issue #33 → Understand WebPageTest waterfall, know the context of performance metrics, learn about the state of video and more.

Issue #32 → Investigating animation performance, debugging layout instability, responsive image optimisation CDNs and more.

Issue #31 → How web content affects power usage, everything you need to know about resource hints, making Instagram faster and more.

Issue #30 → Tackling third-party JavaScript, rendering on the Web, why performance and accessibility have to be the baseline and more.

Issue #29 → Largest Contentful Paint, why Time to First Byte matters, how annoying type delay is and more.

Issue #28 → Fast software is the best software, stale while revalidate, optimising GIFs, accessible React components and more.

Issue #27 → Reducing bundle size at Intercom by 65%, developing performance empathy, learning how browsers parse and render websites and more.

Issue #26 → How does Google PageSpeed work and affect SEO rankings, the cost of JavaScript in 2019, find a cost of adding an npm package and more.

Issue #25 → The real impact of image optimisation, gain speed with variable fonts, accessibility for everyone, implementing critical CSS and more.

Issue #24 → Webfont loading in Google Fonts, Lighthouse 5.0.0, zero parse and compile for JavaScript and more.

Issue #23 → Paint holding, visualising third party scripts impact, performance privilege and more.

Issue #22 → Netflix’s web performance case study, new WebAssembly compiler and runtime, WASI Core and more.

Issue #21 → The ethics of web performance, HTTP/3, faster promises and async functions, Google Lighthouse 4.0 and more.

Issue #20 → All about Time to Interactive, WASM, How HTTPs Ruined everything, and more.

Issue #19 → Native Lazy Load, Perceived performance, measuring layout and more.

Issue #18 → The cost of third-party scripts, step-by-step performance auditing, fast typography with variable fonts and more.

Issue #17 → Sustainable technology, the Internet’s health, Chrome reduces parse and compile by almost 40% and more.

Issue #16 → Building performance culture, revenue impact calculator, lazy loading images and video, automating performance systems and more.

Issue #15 → Front-end Performance Checklist, Safari and Webpack performance upgrades, PerfMatters Conference and more.

Issue #14 → Fontastic web performance, async CSS, why performance efforts fail and more.

Issue #13 → Realistic performance budgets, new HTTP Archive, the cost of JavaScript and more.

Issue #12 → Essential image optimization, web fonts without JavaScript, the cost of ads and more.

Issue #11 → The Critical Request, Facebook news feed changes and more.

Issue #10 → WebAssembly, base64, preload prefetch and more.

Issue #9 → Lighthouse in Chrome Canary, PWA Stats, Article Performance Leaderboard and more.

Issue #8 → JavaScript start-up performance, state of global connectivity, data-saving apps and more.

Issue #7 → Redesigning browser history, Cloudfront HTTP/2, image metadata and more.

Issue #6 → requestIdleCallback, Netflix A/B testing, QUIC Protocol and more.

Issue #5 → Important changes to Typekit, UI design, Delta caching and more.

Issue #4 → Real world http/2, font loading strategies, image compression and more.

Issue #3 → Brotli compression, High performance networking, Mutation Observer tips and more.

Issue #2 → #perfmatters poster, AMP project news, Safari 10 and more.