Website speed is more important for traffic, Google search engine ranking. Also, it improves user experience and results in happy visitors.
How to measure site speed?
There are several tools to measure site speed used by professional WordPress development company.
We can also access the site speed behavior from Google Analytics Dashboard.
How To improve WordPress site speed?
For better site performance a good web hosting is the most important step. To decrease page load time, server response time must be low. Hosting should support gZip compression, CDN, Caching etc. You should use VPS or Dedicated server if your site traffic is really high.
Large images slow down a site and it’s bad for the user experience so we should always upload an optimized image using the online tool like TinyPNG or optimize image through Photoshop. There are some plugins which can optimize existing images in your WordPress like WP Smush Image Optimizer.
WordPress Caching plugin can serve static HTML to your site visitors which can help a lot in page load speed. We can use Free as well as Premium plugins like W3 Total Cache, WP Fastest Cache, WP Rocket.
Your code must be as per WordPress standard and delete unnecessary plugins. Always upgrade WordPress version to the latest. Choose solid theme/framework which does not affect on website speed.
If the site contains large media files(CSS/JS/Images) then we should integrate Content Delivery Network(CDN). CDN store all your media files in different locations and serve based on the nearest location of a site visitor. There are multiple CDN providers like MaxCDN, CloudFlare, Amazon Cloudfront etc.