Why Is Site Speed So Important?
Here’s a fact, if your website takes longer than 2 seconds to load, around 47% of visitors will leave without hanging around.
In order to give your site visitors the best user experience, site speed and page load speed (the time it takes your pages to load onto their device) are very important.
Pages with longer load time tend to have higher bounce rates and a lower average time on site.
No matter how it's measured, it is generally accepted that faster pages both rank and convert better.
Google has indicated that site speed ( and as a result page speed) is one of the indicators used by it's algorithm to rank webpages.
The good news is that we take care of the majority of the technical requirements that help a site load quickly.
What Is Caching & How Does It Affect Site Speed?
Every time a browser loads a web page it has to download all the web files to properly display the page.
Some pages might only consist of a few files and be small in size - maybe a couple of kilobytes.
For others sites there may be a lot of files, and these may add up to be several megabytes large.
The Issue Is Two Fold.
These large files take longer to load and can be especially painful if you're on a slow internet connection (or a mobile device).
Each file makes a separate request to the server.
The more requests your server gets simultaneously the more work it needs to do, only further reducing your page speed.
Browser caching can help by storing some of these files locally in the user's browser.
Their first visit to your site will take the same time to load, but when that user revisits your website, refreshes the page, or even moves to a different page of your site, they already have some of the files they need on their device.
This means the amount of data the user's browser has to download is less, and fewer requests need to be made to your server. The result? Decreased page load times.