If you have a wordpress blog with a decent amount of traffic, hosted on a shared server and you didn’t applied any of the following tricks to your wordpress installation until now, you can expect to have your hosting account suspended anytime. WordPress itself is not written with the performance scope in mind so the default installation uses lots of resources at decent usage.

Fortunately there are some simple solutions you could follow:

• Enable WP Built-in Object Cache – WordPress comes with an option that is disabled by default to cache all the results of database queries locally. The simple activation of this feature could have dramatically improvements on the performance. In order to activate it you have to add the following line to the wp-config.php file in directory where wordpress  was installed:

      define(ENABLE_CACHE, true);

• Install WP Super Cache Plugin. This is the de facto plugin used by 90% of the wordpress optimized websties. It writes the generated pages locally to be served at later requests. It knows when to re-generate each page in the cache if new comments are published or other changes are done.
• Don’t install lots of plugins just because they look good. Each new plugin will store and retrieve some parameters directly from the database. If you have PHP experience it’s a good idea to inspect each plugin which is not very popular and reviewed by other people to see how it uses the database. You should avoid plugins that modifies wordpress queries by adding JOIN clauses or ORDER BY to columns without indexes.

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