by Tim Bowen
Speeding up WordPress
Tim Bowen’s Speeding up WordPress 5/25/10 presentation
Test load times/elements here: Pingdom
Also use YSlow and Google Page Speed to test speed.
PHP Query Elimination:
Use this: <meta charset=”UTF-8″ />
Not this: <meta charset=”<?php bloginfo( ‘charset’ ); ?>” />
Use Google hosted JQuery / Prototype libraries by adding this to functions.php file:
function my_init_method() {
wp_deregister_script( ‘jquery’ );
wp_register_script( ‘jquery’, ‘http://ajax.googleapis.com/ajax/libs/jquery/1.4/jquery.min.js’);
}
add_action(‘init’, ‘my_init_method’);
Remove actions for WordPress meta, rsd_link and wlmanifest by adding these lines to functions.php:
remove_action(‘wp_head’, ‘wp_generator’);
remove_action(‘wp_head’, ‘rsd_link’);
remove_action(‘wp_head’, ‘wlwmanifest_link’);
Use Google minify for JS and CSS files.
Add Javascript files to bottom of page for faster load speeds.
Define elements in wp-config.php file:
define(‘ENABLE_CACHE’, true );
define(‘WP_ALLOW_REPAIR’, true);
Set the WP URL and Site URL to improve site performance. Make sure these are same as in the General Settings page
define(‘WP_SITEURL’, ‘http://SITENAME.com/cms’);
define(‘WP_HOME’, ‘http://SITENAME.com’);
Set the template directory and stylesheet directory to improve site performance and eliminate server queries
define(‘TEMPLATEPATH’, ‘/home/public_html/cms/wp-content/themes/THEMENAME’);
define(‘STYLESHEETPATH’, ‘/home/public_html/cms/wp-content/themes/THEMENAME’);
Use optimized .htaccess file
Disable hotlinking with this code in .htaccess file:
<IfModule mod_rewrite.c>
RewriteEngine on
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?example\.com/.*$ [NC]
RewriteRule .*\.(gif|jpg|png|ico)$ – [F,L]
</ifModule>
Image hosting off-site with WP-Offload plugin and Steady Offload
Add <?php flush(); ?> after the </head> and before <body> to speed up loading.
Potentially useful plugins:
- DB Cache Reloaded (small speed bump while helping to eliminate queries to server)
- W3 Total Cache (small speed bump, also good for heavy traffic)
- Quick Cache (small speed bump, good for heavy traffic)
- WP Super Cache (didn’t notice speed bump, reviews claim good for heavy traffic)
- PHP Speedy (compresses scripts from plugins, small speed bump)
The June TDAC meet-up with include a presentation by Sony Online Entertainment on Video Game Design. This meet-up will be located at ITT Tech with food and drink provided.
Interface Guru provides usability and information design services to a national clientele, emphasizing profitability and brand experience in environments ranging from enterprise-level Web sites to software, intranets, and interactive museum kiosks. The company’s work includes projects for clients ranging from a major credit card corporation to a publisher of globally recognized media brands. Other projects include TV Guide Online, Crain Communications, Shedd Aquarium, IEEE, The Sharper Image, The Higher Learning Commission, Penton Media, The Chicago History Museum, Kiplinger Washington Editors, Magazine Publishers of America, American Society of Magazine Editors, Clickability Inc., Trex Company, The University of Arizona, and Go Daddy Software. Interface Guru has provided pro bono services to projects such as the Mars Phoenix 2007 Mission, Flandrau Planetarium, and the National Optical Astronomy Observatory, and is currently guiding online collaboration for several projects funded by the National Science Foundation.
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