Should I use my ISP's Web Proxy server ?
Many ISPs provide web proxy servers, used for caching content locally. Generally, if you use a Proxy server, when you try to access a website, it will first check if the page has already been cached in the web proxy server. If it is cached, you will get the copy from the proxy server, rather than the original page from the website.
By using proxy servers, your ISP saves bandwidth, however it often creates problems. Accessing secured websites might not work properly, you can actually get lower performance, depending on the quality of the server. You'd have to test to see which works better for you.
Generally we recommend not using your ISP's web proxy servers to avoid the usual congestion and problems associated with them.