The most popular way is to use the service of anonymizer. The essence of this service is that the data before sending it to your computer first pass through a proxy server. Using this method, you can not only visit blocked websites but also to encrypt the addresses that you've visited so that when viewing the logs will only know that you have visited the site anonymizer. Consider it on example On the main page, locate the address bar, then enter the desired address and click "go".
You can also use the option of Opera mini browser. It differs from previous methods by the fact that during the passage through a proxy server, the information is compressed, losing to eighty percent of the original weight. The convenience of this method is that there is no need to go on any Internet address, simply download the browser from the site Keep in mind that initially, this browser was designed for use on mobile phones, so please download and install the java emulator. Running the browser, enter in the address bar has all the features you need after which click on "go".
The ideal option to view a single web pages that are blocked by your proxy server is using the cache of google or any other search engine. Go to the main page search engine, then type in the search site you need. Click on "search", and then deploy the right site in the results. Click on the link "View saved copy". After that you will be redirected to a page with a copy of your page stored in the cache of a search engine.