Page Caching and It’s Benefits
Cached pages are served up as static HTML versions of a page in order to avoid potentially time consuming queries to your database. Cached pages are created to store a “back-up” version of your page which can be served up to a user in place of the most recent version of your page. This is beneficial when serving the most recent version of a page requires accessing database information, which can take more time than serving up an already stored (cached) version of the page.
The benefit for the user of viewing a cached version of the page is that they can get the information they’re looking for quicker. In fact, page caching can lower server load by up to 80%. This is especially beneficial for high traffic websites which make use of database information in order to serve the page to the user. Of course, the disadvantage of page caching is that the user isn’t viewing the most recent version of the page. However, for sites which don’t include dynamic features or add new information often, this is an optimal way for the user to view the site quickly.
Page caching also allows the user to view the cached version of the page just in case the current version is unavailable due to internet congestion, recent removal of the web page or if the web page is just taking a long time to load.
Types of Page Caching
There are three methods to catch pages:
Alternative PHP caching
Alternative PHP Cache (APC) is an open source framework which caches data using intermediate PHP code. Most web programmers who are familiar with the PHP programming language can easily set up Alternative PHP Cache for your site.
Quickcache is a lightweight page caching solution which was formerly known as jpcache. Quickcache caches the page output rather than compiling the PHP page, making it a superior version of page caching to the Alternative PHP caching. Quickcache can be quickly downloaded from their website and can reduce your page load time up to 80%.
WP Super Cache
If you have a WordPress website, WP Super Cache can be installed within seconds and without no programming knowledge.
Using Page Caching and Other Methods to Speed up Your Site