There are several companies that provide free speed tests for websites. My recommendation is to use Google Page Speed Tester:
https://developers.google.com/speed/pagespeed/insights/If you received a score of 49% and less, you will have to make several adjustments to increase your score. Here are several ways of increasing your websites loading speed.
Hosting CompanyIts important to use a reputable and professional hosting company for your website. The reason is hosting companies that offer poor quality servers can effect all apspects of your online marketing. If people click your ad on Google and your website is offline, you will lose a potential sale, and Google will not rank your website on Page 1, even if you have had the best SEO Experts work on your site.
ImagesUsing high resolution images can slow down the time a web page downloads. Cutting the size of the image while maintaining the quality is the ideal solution. Here is a website that allows you to reduce an image size:
https://resizeimage.net/Browser CacheThis is essential for people returning to your website. The process allows images, java files and css to be stored on the users browser. When the user returns, the website downloads your website with lightning speed. If you own a WordPress website, you can download this plugin to enable this feature.
W3 Total CacheUnnecessary PluginsPlugins provide great value for our websites. The only problem with having plugins is if you have too many plugins installed, it will slow down your website loading time. Remove any plugins your website doesn’t require and it will increase your loading speed.
Website ThemeWebsite themes with lots of coding could be the primary reason for your slow website loading speeds. Javascript and CSS incorporated into themes increase the file size of the theme. In order to test the speed of your theme, visit this website-
https://wordpress.org/plugins/themes-speed-test/CONCLUSIONThe listed recommendations can be implemented by people with limited knowledge on WordPress. If you do not have any experience with WordPress, please forward the following suggestions to your web designer.