Are they up is a npm package that can be installed globally that checks to see if any domain is up.
Well I have in the past been working on a api framework with a particular domain and ran into an issue where they were down or I couldn't decide if my internet was down or if a site was.
npm install aretheyup -g
//or this for single project
npm install aretheyup
The good news its super simple as shown below. The return is either a nice green check with an affirmative Yup! or a red cross with a sad Nope! If you type a domain in wrong you will get an error that says please check the domain and try again. Simple yet function!
I plan to add response times, returned ip and return code. AS functionally they are useful.
I hope you enjoy it, if you have any issues go ahead and report it via github