In this example, we will use PhantomJS to find the page speed for any given page URL.
system=require('system'),t,address;if(system.args.length===1){console.log('Usage: loadspeed.js <some URL>');phantom.exit(1);}else{t=Date.now();address=system.args[1];page.open(address,function(status){if(status!=='success'){console.log('FAIL to load the address');}else{t=Date.now()-t;console.log('Page title is '+page.evaluate(function(){returndocument.title;}));console.log('Loading time '+t+' msec');}phantom.exit();});}