This is how you use it. 6. Always bring the image to China Phone Number List optimize before use. Before we upload the image to the website we should reduce the file size to the smallest size before using it. For example, tinypng will compress our images to a smaller size. In addition, there is another plug-in that can be used for free, shortpixel , a plug-in that can compress our images. And can also set the image size for uploading the recommended image size is no more than 500 kb. 7.Reduce the use of third party scripts if you want the website to download really fast should choose to use scripts downloaded from external sources such as facebook chat, youtube video, iframe tag as little as possible, etc. We do not know how long scripts downloaded externally take time to download. Because it depends on the server of those script how much efficiency. If it is really necessary to use these scripts, it is desirable to choose the script that is deposited on the cdn (content delivery network) because it has a higher download speed than the script that is deposited on the general server.