WP images lazy loading is the new WordPress plugin that adds jQuery to WordPress and enables lazy loading in images. Thus improves your page loading times and makes your Google PageSpeed Score better than before.
BootstrapCDN is a free public content delivery network. If you are a BootstrapCDN user then you can load CSS, JS and also images from its servers remotely. It uses NetDNA’s global content delivery network which makes websites using its service resilient to unexpected surges in internet traffic.
Cache is basically a component used for storing data transparently for fast processing of requests. Data stored in cache can be the computed values or duplicates of original values stored somewhere else. If data is stored in the cache then requests are served simply by reading the cache which is comparatively faster. This tutorial explains you how you can enable cache for Gravatars of your WordPress site.
Most of the internet users close the site in between its loading time. You must keep you website light, keep navigation easy and remove useless content and flash which is slowing down your website. So first of all you need to know what is actually affecting your website’s speed, well you can find it very easily. Now there are a number of websites that provides you free service of checking your website’s speed and suggesting what apps and plugins are affecting your website’s loading time.
Generate performance report for your WordPress site and track plugins that are slowing down your site.