Use The Index, Luke! : A tutorial covering SQL indexing and SQL tuning for developers: avoiding unnecessary details about database internals.
SQL indexing is the most effect...
MySQLTuner : MySQLTuner is a script written in Perl that will assist you with your MySQL configuration and make recommendations for increased performance and stabi...
Browser Calories : The easiest way to measure your performance budget.
Dolt : Dolt is a SQL database that you can fork, clone, branch, merge, push and pull just like a Git repository.
Connect to Dolt just like any MySQL database...
webhint : webhint is a linting tool that will help you with your site's accessibility, speed, security and more, by checking your code for best practices and co...
Vitess is a database clustering system for horizontal scaling of MySQL.
Let's make the web faster : There are many ways to make websites run faster. In this section, you can discover performance best practices that real web professionals employ in th...
Minimize round-trip times : An article on the best practices to apply in order to minimize HTTP round-trip times
YunoHost : YunoHost is a server operating system aiming to make self-hosting accessible to everyone.
Vitess : Vitess is a database clustering system for horizontal scaling of MySQL.
Explorer Exposed! : These CSS bugs are all found only in Internet Explorer, versions 5 and higher. To see the demos properly, they must be viewed in IE, of course.
Nice write-up on techniques for scaling up a web application.