"IsItUp" is a macOs Menu Bar (BitBar) plugin that allows you to check whether or not a given website is currently up (online).
By default, the website is checked every 5 seconds, however, you can change it to be checked more or less frequently.
You will see the following green text when the website is up (online):
You will see the following red text when the website is down (offline):
If, on the off chance the website can not be reached (your WiFi is off for example), will see the following yellow text:
You can also click the text to see more details and access options:
View the following video to see how to configure the plugin to use a custom website and display custom messages:
The plugin currently checks the website every 5 seconds, however, you can change this by renaming the file and changing the ".5s." to ".10s.", etc.