There are a number of techniques to get past Internet filtering. If your aim is simply to reach pages or services on the Internet that are blocked from your location, and you are not concerned whether other people can detect and monitor your circumvention, these techniques may be all you need: Using third-party Web sites to reach blocked content.
• Using alternative domain names (or domain name servers) to reach blocked content.
• Using e-mail gateways to retrieve blocked Web pages over e-mail.
• Using third-party sites.
There are a number of different ways you can reach the content on a Web page by going through a third-party web site rather than directly to the source web site.
Many search engines keep copies of Web pages they have previously indexed, called cached pages. When searching for a Web site, look for a small link labeled "cached" next to your search results. Since you are retrieving a copy of the blocked page from the search engine's servers, and not from the blocked Web site itself, you may be able to access the blocked content. However, some countries have targeted caching services for blocking, as well.
RSS aggregators are Web sites that allow you to subscribe to and read RSS feeds, which are streams of news or other information put out by sites you have chosen. (RSS stands for "Really Simple Syndication"; for more on how to use it, see http://rssexplained.blogspot.com/.) An RSS aggregator connects to Web sites, downloads the feeds that you have selected, and displays them. Since it is the aggregator connecting to the Web sites, and not you, you may be able to access sites that would otherwise be blocked. This technique works only for Web sites that publish RSS feeds of their content, of course, and therefore is most useful for blogs and news sites. There are a lot of free, online RSS aggregators available. Some of the most popular ones include Google Reader (http://reader.google.com) and Bloglines (http://www.bloglines.com). Below is an example of Google Reader displaying the news:
There are many language translation services available on the Internet, often provided by search engines. If you access a Web site through a translation service, the translation service is accessing the blocked site, not you. This allows you to read the blocked content translated into a number of different languages. You can use the translation service to bypass blocking, even if you don't actually need to translate the text. You do this by choosing translation from a language that does not appear on the original Web site back to the original language. For example, to use a translation service to view an English-language Web site, choose translation from Chinese to English. The translation service translates only the Chinese sections (there are none), and leaves the English sections (which is the whole Web page) untranslated. Popular translation services include http://babelfish.yahoo.com/ and http://translate.google.com/. The example below illustrates the three steps necessary to view a page in Babelfish. First, enter the URL of the Web site you wish to visit:
• Using alternative domain names (or domain name servers) to reach blocked content.
• Using e-mail gateways to retrieve blocked Web pages over e-mail.
• Using third-party sites.
Cached Pages
Many search engines keep copies of Web pages they have previously indexed, called cached pages. When searching for a Web site, look for a small link labeled "cached" next to your search results. Since you are retrieving a copy of the blocked page from the search engine's servers, and not from the blocked Web site itself, you may be able to access the blocked content. However, some countries have targeted caching services for blocking, as well.
RSS Aggregators
RSS aggregators are Web sites that allow you to subscribe to and read RSS feeds, which are streams of news or other information put out by sites you have chosen. (RSS stands for "Really Simple Syndication"; for more on how to use it, see http://rssexplained.blogspot.com/.) An RSS aggregator connects to Web sites, downloads the feeds that you have selected, and displays them. Since it is the aggregator connecting to the Web sites, and not you, you may be able to access sites that would otherwise be blocked. This technique works only for Web sites that publish RSS feeds of their content, of course, and therefore is most useful for blogs and news sites. There are a lot of free, online RSS aggregators available. Some of the most popular ones include Google Reader (http://reader.google.com) and Bloglines (http://www.bloglines.com). Below is an example of Google Reader displaying the news:
Translators
There are many language translation services available on the Internet, often provided by search engines. If you access a Web site through a translation service, the translation service is accessing the blocked site, not you. This allows you to read the blocked content translated into a number of different languages. You can use the translation service to bypass blocking, even if you don't actually need to translate the text. You do this by choosing translation from a language that does not appear on the original Web site back to the original language. For example, to use a translation service to view an English-language Web site, choose translation from Chinese to English. The translation service translates only the Chinese sections (there are none), and leaves the English sections (which is the whole Web page) untranslated. Popular translation services include http://babelfish.yahoo.com/ and http://translate.google.com/. The example below illustrates the three steps necessary to view a page in Babelfish. First, enter the URL of the Web site you wish to visit:
Next, choose the language you wish to read the Web site in. In this example, we tell Babelfish to translate from Korean to English. Since there is no Korean text, the page will remain untranslated .
When you have chosen the language, click "Translate" and the page displays
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