What is page loading speed?
Page loading speed refers to the time it takes for a web page to fully display all its content. Faster loading speeds can improve the user experience, increase engagement and reduce bounce rates. Several factors can affect page load speed, including the size and number of assets (such as images and scripts), the use of a content delivery network (CDN) and the quality of the web hosting service. To improve page load speed, web developers can optimise images, reduce code and use browser caching, among other techniques.
Page load speed can be measured using various tools, such as Google’s PageSpeed Insights, GTmetrix and Pingdom. Browsers such as Chrome, Firefox and Safari provide a developer tool that allows the user to measure loading speed and identify page problems.
What are the main factors affecting page loading speed and how can you fix them?
There are a number of factors that can increase the time it takes to load a page. Some of the most important ones are :
The HTTP protocol. More recent HTTP protocols such as HTTP/2 help pages load much faster.
The size and number of resources: Large images, videos and other resources – and a large number of those resources – can slow down the loading speed of a page.
Web hosting: The quality of web hosting can have a significant impact on page load speed. Web hosting services that are slow to respond or have a high number of downtimes can slow down the loading of your pages.
Network latency: The distance between the user and the server hosting the website can affect the loading speed. A longer distance means more time is needed to load the content.
Server-side optimisation: Server-side code execution, database queries and the overall application architecture can have a significant impact on load speed. If the server takes a long time to respond, it can slow down the page load speed.
Third-party requests: Third-party requests, such as requests to external APIs, fonts and other resources, can affect the load time of a page.
Content Delivery Network (CDN): CDNs can help speed up the loading of a page by replicating website files across multiple servers in different locations, so that content is served from a server physically closer to the user, reducing latency.