There are two things that discourage users the most and increase the bounce rate: website speed and content. Most search engines evaluate site loading speed when ranking websites and decrease the visibility of slower websites. The two key elements that affect the latency of websites running on Azure App Service are:
Website and database present in the same data center decrease latency time as an app doesn’t need to travel the world and request database from a remote data center. It results in the increased speed of the page load time.
WordPress offers free MySQL for WordPress websites, but it doesn’t suit the production needs due to the 20MB storage limit. Another notable limitation is the allowed four connections. Furthermore, it has poor performance that affects WordPress speed and never meets the required standards.
WordPress sites are great when it comes to auto-saves, but they keep databases full with a lot of trash coming from comments, pingbacks, and revisions. WP-Optimize is a great plugin to remove irrelevant data from the database to increase the efficiency and speed up your WordPress site.
Big sized images significantly decrease page load time and consume bandwidth. Azure Storage Blob and Azure CDN help to solve this issue as they allow adding media directly to the website instead of using the upload option. Use WP Smush.it to compress images in the library without losing their quality.
Put all JS and CSS files in one file to prevent multiple dependent requests. If you are using JS or CSS, then use Better WordPress Minify or similar plugins to combine all the stylesheets into one place and reduce the number of requests. It is also better to place your files in your local installation rather than keeping them in third-party libraries.
Don’t ignore the speed issues of your WordPress theme. To check the speed of the theme, uninstall your theme and install the default TwentyFourteen one. If you experience a significant speed increase then you know that the poorly coded theme is the issue.
Use the P3 WordPress plugin to investigate the performance of other plugins. Remove plugins which you don’t use and install only the credible plugins. This will improve your website overall performance.
Pingback is a feature that informs the website owner of other resources linking to yours and trackback is a legacy link system. They slow down the speed of the website and you should disable them to improve the performance of your WordPress site.
Specify your image dimensions as it takes more time for the client browser to process the download along with identifying the dimensions of the layout for the images.
IIS output caching, Azure Redis cache, WP Super Cache, and Wincache are amazing plugins that handle caching for high-traffic websites. They improve the throughput, correctly handle comments, and greatly improve website performance.
All these measures are just a few minutes of work but they will definitely help you to speed up your WordPress site.