I update this post with some additional techniques of speeding up WordPress. Sometimes, you hear bloggers say, their WordPress powered blog gets slower and slower and - while experiencing a traffic peak - it even passes away. Here are some quick methods to speed up Wordpress and reduce its need of ressources.
How to speed up WordPress
There are several ways to speed up your WordPress blog. Try these:
Use WordPress cache to speed up your blog
WordPress can cache all database queries on your server´s harddisk. Just add the following to your wp-config.php:
// Enable WP Object Cache:
define(ENABLE_CACHE, true);
I added this to my config-File and have to say, even though this blog does not yet encounter >10.000 Visitors per day, it really impoves WordPress performance and makes this blog faster than it used to be before.
Reduce dynamic PHP calls
This can improve your WordPress performance by up to 25%. Look at your header.php file in your theme-folder. Within you´ll find many lines of PHP code that will display information on your blog, which stays the same every time. Each of these PHP calls has to be processed by your webserver and triggers a database connection what takes some time and it can really add up. So why not replacing these calls to static code?
Example:
<title><?php bloginfo(’name’); ?> <?php bloginfo(’description’);?></title>
This line graps the name of your blog and it´s description from the database and displays it as HTML. Do you change the name and the description of your blog so often that it needs to be display dynamically? Problably not, so no problem with replacing this to static HTML.
<link rel="alternate" type="application/rss+xml" title="RSS" href="<?php bloginfo('rss2_url'); ?>" />
This tells the browser if and where it can find your RSS-Feed. Has your feeds URL ever changed? Why not putting in the actual URL of it instead of a PHP call which grabs it from the database?
There are even more PHP calls which can be replaced easily, not only within header.php, have a closer look at your single.php and footer.php files as well. They are all located in your themes folder.
Speeding up WordPress - the basics
When it comes to speeding up your WordPress blog, just go and read these valuable tips, I have collected for you:
I would like to hear from you if these little tweaks had a positive effect on your blog, please leave a comment with your results.
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September 9th, 2007 at 2:23 am
Thanks for your entry into my group writing project. I’m trying out this tip right now!
September 9th, 2007 at 4:55 am
Hi Sarah,
please let me know you experiences on this.
September 17th, 2007 at 6:54 am
http://dougal.gunters.org/blog.....ject-cache
That’s a great article on extending the cache funtion, should you need to.
Cheers,
Steve.
September 19th, 2007 at 11:56 am
I am going to try this and will let you know .
September 20th, 2007 at 9:00 am
Is it really that simple?! There is no downside? Will try it out.
September 21st, 2007 at 1:04 am
Hi Marco,
Before making this change, do you have to verify the amount of disk space you are alloted with your host? Thanks!
September 21st, 2007 at 1:57 am
Hi JoLynn.
You´re right, this will need some extra disk space on your server. Check your free amount with your hosting company, but most plans should offer far enough disk space to do this. No problem.
September 21st, 2007 at 2:04 am
Thanks Marco!
September 21st, 2007 at 5:38 am
I have voted for you among my top-3 favs. I hope you get more votes - this is an easy, yet effective tip.
Like someone asked earlier, is there any sideffect to this? Also, what is the time difference between, say posting a comment/post and it appearing on the blog?
September 21st, 2007 at 6:05 pm
TechZilo, thanks for the vote.
The WordPress Cache does not speed up the process of posting a comment or an article. It just saves your pages in a static version, so it can be displayed to a visitor faster than normal, as a wordpress page does require several database access before displaying that page. Thus, it just saves the time, your server will need to deliver a page to the users browser.
December 13th, 2007 at 5:12 am
Interesting…