Useful Links

HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
Ajax Preloader Generator
Easily create your own ajax loader icon
cPanel Server Services
cPanel Server Services from Way to The Web Ltd
DNS information
IntoDNS checks the health and configuration and provides DNS report and mail servers report and provides suggestions to fix and improve them, with references to protocols' official documentation.
SSL Checker
This SSL Checker will help you diagnose problems with your SSL certificate installation
W3C Markup Validation Service
Check the markup (HTML, XHTML, etc..) of Web documents