Diagnosing Woocommerce/WordPress performance issues?

So I installed a discounts plugin and applied a discount to 200 products, however I noticed that sometimes my site went into error connection timeout, I know the cause of the issue in this case, but if I didn’t how can i diagnose issues?

I have Newrelic connected btw.


This site will teach you how to build a WordPress website for beginners. We will cover everything from installing WordPress to adding pages, posts, and images to your site. You will learn how to customize your site with themes and plugins, as well as how to market your site online.

Your Advertisement Here