javascript - Identifying if a website has AJAX requests -

i'm wondering if there easy way identify website uses ajax requests.

i went through following article,

http://www.zansule.com/2010/08/how-to-tell-if-a-site-is-using-ajax/

excerpt article :

"with xhr console opened, run suspected ajax based operation , monitor console requests being sent indicates operation ajax driven. note xhr console shows xml http requests"

does mean requests shown in xhr console indicates website has ajax requests?

for example, went amazon.com, searched apple iphone 5s , clicked on reviews , did show requests in xhr console. please advise if understanding correct.

yes, if open developer tools, click on network tab, , choose "xhr" filter, developer tools show xhr (xml http requests) requests performed site. these ajax calls being made.