This is a WordPress Admin Dashboard metabox that detects and organizes important information for developers. The information ranges from basics like server IP address to more advanced things like domain expiration date and registrar. Some information is useful at a glance while others are good for warnings and page speed.
This metabox also provides a search tool to find strings and filenames anywhere in your theme files, plugin files, or uploads directory. This is useful for finding PHP functions and if you need to override or customize plugin functions this is handy for finding where they are declared.
There are two ways of using this function— either develop your themes using the WordPress Nebula, or install the Gearside Developer Dashboard plugin available on WordPress.org which also includes the TODO Manager metabox.
Here is a full list of everything that is detected:
WordPress debug mode (if enabled)
Domain Name (and expiration date)
Registrar (and reseller)
Hostname (and reseller)
Server Operating System
PHP Memory Limit
Theme directory size
Uploads directory size (and max upload size)
Homepage load time (with link to Google Page Speed)
Initial installation date (best possible)
Last modified (file and date)
If you have any questions or ideas, feel free to let me know on GitHub!