Apachebench ships with Apache and can be used for simple testing. http://httpd.apache.org/docs/2.0/programs/ab.html http://httpd.apache.org/docs/2.0/programs/a

Apachebench ships with Apache and can be used for simple testing. http://httpd.apache.org/docs/2.0/programs/ab.html http://httpd.apache.org/docs/2.0/programs/ab.html For more realistic mutli-page tests Selenium works well - spin up a few EC2 or similar machines, run Selenium Grid and you can get a decent idea of how your site will cope. For a simple Wordpress blog Apachebench should suffice though.