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...
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...
Yellow Lab Tools : Online test to help speeding up heavy web pages
Metabase : Metabase is the easy, open source way for everyone in your company to ask questions and learn from data.
Vitess is a database clustering system for horizontal scaling of MySQL.