WordPress Caching Can Make a Massive Difference to the Speed Of Your Site

by UMS
4 replies
As most of you know, the faster the pages on your site load the better both in terms of user experience and as a factor for search engines (albeit relatively minor)

I did some experiments with one of my WordPress sites that is hosted on Hostgator.

The site in question is relatively simple. It's using the twenty-ten theme with a bunch of usual plugins (all-in-one-seo, google xml sitemap etc) and has 3 posts, each of which are around 1200-1400 words.

I conducted my tests via Alertra Website Monitoring Service

Alertra tested the speed of your site from various locations around the world, so you get a much more realistic picture of your overall site performance.

The caching plugin I am using is W3 Total Cache. With the caching enabled, I just selected and enabled the standard caching options in W3 Total Cache.

I ran a series of tests with and without caching and grabbed a screenshot of the results that were representivie of an average test.

Test With Caching Disabled

Test With Caching Enabled

As you can see, with caching enabled, the load times of the page have significantly improved.

Of all the WordPress caching plugins, W3 Total Cache is certainly the most complex, but I also suspect (I'll need to do further testing) that it also gives you the best performance increase.

If you don't want to use W3 Total Cache, then my other suggestion is "Quick Cache".

Quick Cache is what I use on most of my sites at present, but I think I'll seriously look at using W3 Total Cache in future.
#caching #difference #make #speed #wordpress
  • Profile picture of the author vansterdam420
    Yes caching it quite crucial for wordpress blogs. If you've got a lot of plugins installed, caching may make a greater difference. You want to avoid database fetching wherever possible.
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  • Profile picture of the author UMS
    There are quite a few WordPress plugins that run each time you view a page. Quite often they will be grabbing data from the database and if you have a number of those types of plugins active, then that can really slow things down.
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  • Profile picture of the author Zach Crawley
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  • Profile picture of the author retsek
    Wordpress is a beast with large dbs and and high traffic.

    I saved a news site that gets 250k pageviews per day, and has a massive 1.5GB database. Simply using W3 Total Cache with all the options, and converting the tables to InnoDB was enough to make the site lighting fast on a puny dedicated server. Moving the comments offsite to Disqus also helped alot.

    The Wordpress core, especially query_posts has alot of bad code. Wish they'd clean it up.
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