How to: Performance
See also [Accessibility (a11y)](#accessibility-a11y) && [Ecology :seedling:](#ecology-seedling) && [Web development](#web-development)
* [Karolina Szczur](https://medium.com/@fox/talk-the-state-of-the-web-3e12f8e413b3) - (2017) The State of the Web | A guide to impactful performance improvements
* [Addy Osmani](https://speakerdeck.com/addyosmani/the-browser-hackers-guide-to-instant-loading) - (2017) The Browser Hacker's Guide To Instant Loading
* [Ian Lurie](https://www.portent.com/blog/user-experience/code-coverage-page-speed.htm) - (2017) Code Coverage Analysis for Better Page Speed
* [Nicolas Hoffmann, Elie Sloïm](https://openweb.eu.org/articles/le-cout-de-la-non-qualite-sur-le-web) - (2014) :fr: [FR] Le coût de la non-qualité sur le Web : 50%
 * [Jack Lenox](https://www.smashingmagazine.com/2019/01/save-planet-improving-website-performance/) - (2019) How Improving Website Performance Can Help Save The Planet
* [JAMstack](https://jamstack.org/) : noun `’jam-stak’` : Modern web development architecture based on client-side JavaScript, reusable APIs, and prebuilt Markup. | The JAMstack is not about specific technologies. It’s a new way of building websites and apps that delivers better performance, higher security, lower cost of scaling, and a better developer experience.
* [Alex so yes](https://alexsoyes.com/eco-conception-web/) - :fr: [FR] (2021) Comment coder un site écologique ? Devenir un développeur green avec l’éco-conception web
* [The 512KB Club](https://512kb.club/) - The 512KB Club | The internet has become a bloated mess. Massive JavaScript libraries, countless client-side queries and overly complex frontend frameworks are par for the course these days. [...] But we can make a difference - all it takes is some optimisation. [...] The 512KB Club is a collection of performance-focused web pages from across the Internet. **GitHub repository** [kevquirk/512kb.club](https://github.com/kevquirk/512kb.club)
* [Unix Sheikh](https://www.unixsheikh.com/articles/javascript-malware-infested-nightmare.html) - (2021) JavaScript malware infested nightmare | some rant
* [Ben Hoyt](https://benhoyt.com/writings/the-small-web-is-beautiful/) - (2021) The small web is beautiful
> * Fewer moving parts. It’s easier to create more robust systems and to fix things when they do go wrong.
> * Small software is faster. Fewer bits to download and clog your computer’s memory.
> * Reduced power consumption. This is important on a “save the planet” scale, but also on the very local scale of increasing the battery life of your phone and laptop.
> * The light, frugal aesthetic. That’s personal, I know, but as you’ll see, I’m not alone.
* [John Allspaw](https://www.adaptivecapacitylabs.com/blog/2017/12/19/taking-human-performance-seriously/) - (2017) Taking Human Performance Seriously
> A proper treatment of the human element requires the human to be the focus
* [Ian Miell](https://zwischenzugs.com/2018/10/02/why-are-enterprises-so-slow/) - (2018) Why Are Enterprises So Slow?
* [GTmetrix](https://gtmetrix.com/) - Website Speed and Performance Optimization
* [PageSpeed Insights](https://developers.google.com/speed/pagespeed/insights/) - Analyze a website performance
* [Socialtalents](http://loadme.socialtalents.com/Begin/New) - Loadme - cloud-based load / stress testing service for you website or API 
* [What Does My Site Cost?](https://whatdoesmysitecost.com/) - Find out how much it costs for someone to use your site on mobile networks around the world.
* [Daniel Miessler](https://danielmiessler.com/blog/10-ways-to-test-your-website-performance/) - 10 Ways to Test Your Website Performance
* [GoogleChrome/lighthouse](https://github.com/GoogleChrome/lighthouse) - Auditing, performance metrics, and best practices for Progressive Web Apps. **See also** : [Website](https://developers.google.com/web/tools/lighthouse)
* [WebPagetest](https://www.webpagetest.org/) - Test a website's performance | WebPagetest is a tool that was originally developed by AOL for use internally and was open-sourced in 2008 under a BSD license. The platform is under active development on GitHub and is also packaged up periodically and available for download if you would like to run your own instance. **See also** [GitHub repository](https://github.com/WPO-Foundation/webpagetest)
* [WebPagetest](https://www.webpagetest.org/lighthouse) - Lighthouse Test - Run a Chrome Lighthouse Test | Lighthouse Test
Run Lighthouse on an emulated mobile device on a 3G network. Running the test will give you the top level scores for all the categories Lighthouse runs on, as well as individual level reports.