Check if the internet connection is up
MIT License
Node.js `http.STATUS_CODES` ponyfill
Check if a string is a URL
Test your internet connection speed and ping using speedtest.net from the CLI
Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc
Get your public IP address
Check if servers are reachable
Check whether a website is up or down
Get your internal IP address
Check if stdout or stderr is interactive
Check if a string is an IP address
Check if a local or remote port is reachable
Wait for localhost to be ready from the command-line
Check if a number is a redirect HTTP status code
Get your public IP address - very fast!