Website load testing using agents is disclosed. An address of a website and a window of time in which to perform a load test are received. The address and the window of time are distributed to a plurality of remotely operating agents, distributed over a wide area. Each agent in the plurality is to access the website at the received address during the window of time to load test the website. Data from the plurality of agents is received upon passage of the window of time, describing a load placed upon the website by the plurality of agents. The received data describing the load placed upon the website is presented. Alternatively, a script may be used to load test a website, the script a series of commands to be executed across the website as a simulation of a transaction, the script to be executed in the window of time.