The theme check plugin is an easy way to test your theme and make sure it’s up to specifications with the latest theme review standards. With it, you can run all the same automated testing tools on your theme that WordPress.org uses for theme submissions. That allows for a lot of power for your WordPress site.

The tests are run through a simple admin menu and all results are displayed at once. This is very handy for theme developers, or anybody looking to make sure that their theme supports the latest WordPress theme standards and practices.

You should really get this plugin for your website since it is really helpful.