Is it possible to ping a server from Javascript?

Question

I\'m making a web app that requires that I check to see if remote servers are online or not. When I run it from the command line, my page load goes up to a full 60s (for 8 e

Answer 1

There are many crazy answers here and especially about CORS -

You could do an http HEAD request (like GET but without payload). See https://ochronus.com/http-head-request-good-uses/

It does NOT need a preflight check, the confusion is because of an old version of the specification, see Why does a cross-origin HEAD request need a preflight check?

So you could use the answer above which is using the jQuery library (didn't say it) but with

type: 'HEAD'

--->

Off course you can also use vanilla js or dojo or whatever ...