Our plugin does real time connection quality tests to USA, Asia, Middle East & Europe & notifies you of any problems it also checks your site’s uptime to see how long your server has been up. This helps you detect poorly maintained server hardware & bad server locations & poor peering arrangements at data centers. Your site operates best in a good environment. To test this environment WP Optimiser runs a series of checks on you RAM memory, PHP Memory, PHP settings. host settings & drive capacity. Where problems are found you’ll get recommendations about setting changes you can ask your host to implement……..
Source: WP Optimiser