从一个网站收集字符串，该网站在一定时间后开始拒绝您的连接

I am currently creating a program that, based on constantly changing variables, connects to a website, and gathers information. It must connect to the website up to 400 times. The subject website seems to display a blank screen after a certain amount of connections, about 10-30. Does anyone know the best way find how long to wait between connections?I am currently creating a program that, based o