Performance simply matters. Technology may allow us to "e;go bigger"e;, but maybe not necessarily be better when it comes to performance. Now is the time to utilize the amazing tools that are available for making websites faster, and to learn how to improve user experience and satisfaction.This book contains a series of practical, real-world performance tutorials, all based around a single project: a simple image gallery blog. We'll build the project, and then run through a series of performance optimization processes; by the time we're done, we'll have achieved very significant performance improvements. This book is packed with useful, real world hints and tips that you can use on your sites today. It contains:Building an Image Gallery Blog with Symfony Flex: the Setup by Zoran AntolovicBuilding an Image Gallery Blog with Symfony Flex: Data Testing by Zoran AntolovicPHP-level Performance Optimization with Blackfire by Bruno SkvorcMySQL Performance Boosting with Indexes and Explain by Claudio RibeiroImproving Performance Perception with Pingdom and GTmetrix by Tonino JankovImproving Performance Perception: On-demand Image Resizing by Bruno SkvorcUsing Background Processing to Speed Up Page Load Times by Bruno SkvorcServer-side Optimization with Nginx and pm-static by Tonino JankovHow to Use Varnish and Cloudflare for Maximum Caching by Bruno SkvorcThis book is for all developers who wish to build sites and apps that run faster. It covers a range of performace tools; familiarity with web development is assumed.