Your site has 200 visits per day, you don't need to take care about performance.
But if your site reach 2000 visits per day, the speed of your site matters.
Let's see tips from our team. We ues these tips for the busy traffic sites: http://wpml.org and http://wp-types.com.
This presentation was on air in Saigon on March 1, 2014 in the event:
+ www.meetup.com/Saigon-WordPress/events/166516282/
+ https://www.facebook.com/events/1411002305815823?refid=48
2. About me and the company
Dat Hoang
● Community & Support
of OnTheGoSystems
● Marketing Online
OnTheGoSystems
● WPML
● Toolset plugins
● ICanLocalize
5. Tips for database
1. No revision if you have no idea to use it
● Delete current revision posts
DELETE a,b,c FROM wp_posts a WHERE a.post_type =
'revision' LEFT JOIN wp_term_relationships b ON (a.ID = b.
object_id) LEFT JOIN wp_postmeta c ON (a.ID = c.post_id);
● Disable revision in wp-config.php
define('WP_POST_REVISIONS', FALSE);
6. Tips for database
2. Automatically empty trash
Define this line in wp-config.php
define('EMPTY_TRASH_DAYS', 10 );
3. Cleanup database
Log in phpMyAdmin
-> Select your blog tables
-> Click ‘repair’ button
-> Click ‘optimize’ button
7. Advanced tips
1. Minify CSS and JS files
○ WP Minify
○ Better WP Minify
○ WP-Compress-HTML
2. CDN (Content delivery network)
○ Amazon S3, CloudFront
○ MaxCDN
3. Caching plugins
○ WordPress Super Cache: small sites, low traffic
○ W3 Total Cache: big sites, high traffic, supporting
CDN