What is an Anonymizer?

Mary McMahon
Mary McMahon

An anonymizer is a service for web users who wish to keep their browsing activity private. Rather than accessing web pages through their browsers directly, people using an anonymizer request pages through the service. The service accesses the page and relays it to the browser. Thus, statistics about the user, such as the person's Internet protocol (IP) address, browser version, and so forth, are not collected. This allows people to access pages with a degree of anonymity.

Racks of servers.
Racks of servers.

The most basic kind of anonymizer is a single point system. Requests for web pages go from the user to the anonymizer to the end page, and then back again. In a networked system, requests are sent through multiple layers of anonymizers, designed to obscure details as much as possible. This also reduces security risks, because if one anonymizer is compromised, the user's identity will still not be revealed.

There are a number of ways people can use such systems, ranging from using a web page to installing a browser plug in. Such services are intended to reduce risks, but they can also carry risks of their own. It is important to use a trusted anonymizer, as otherwise the system can inject malicious code or other materials as people access web pages. This can create security risks for users as well as the sites they interact with; someone sending email through such a service, for example, might end up sending viruses along with the contents of the emails.

The security of the service is also not necessarily guaranteed. If the servers are hosted in a country where companies can be compelled to turn over records by law and records of users are kept, these can end up in the hands of law enforcement. People using the Internet for malicious activity may be tracked down this way, along with people like political dissidents, who may use anonymizers for safety. While statements may be made about security and privacy, it is difficult to verify these statements and there is a certain amount of risk involved in using such services.

Asking other computer users for recommendations can help people find a reasonably secure and reliable anonymizing service. Experienced coders can also create their own and use it within a networked system or as a single point system, depending on their inclinations. People should be aware that some anonymizers specifically do not offer protections to people involved in illegal activity, and will turn records on such activities over to law enforcement.

Mary McMahon
Mary McMahon

Ever since she began contributing to the site several years ago, Mary has embraced the exciting challenge of being a EasyTechJunkie researcher and writer. Mary has a liberal arts degree from Goddard College and spends her free time reading, cooking, and exploring the great outdoors.

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Discussion Comments


Are anonymizers free or is it a service that one must pay for?


Another issue with having your browsing data stored is that this data is used to create a web browsing experience that is supposedly more "relevant" to you. This will include targeted ads, content suggestions and the prioritization of the sites and subjects that you most prefer.

This can be handy in some cases, but in others it can lead to a predictable and homogenized browsing experience. And as it relates to news and opinions, it can lead to an echo chamber effect where you only get the voice and ideas you already agree with.

The internet was successful because it was unpredictable and it created links between unexpected pieces of information. The more it becomes tailored just for our preferences, the more the spirit of adventure and discovery that made it great is lost.


@backdraft - I couldn't agree with you more. Internet privacy is a huge issue these days. As a matter of fact I just canceled my Facebook page because I was unhappy with the amount of data that they mined from my page and stored. And Facebook is one of many many sites that do this kind of thing.

You said it right, the data might not be used for anything bad but that is not the point. That's like saying "you shouldn't worry about being on security cameras as long as you aren't doing anything wrong." I want to be able to browse the internet privately.


I think anonymizers are a really important service and I use one every time I browse the internet. I'm using one right now as a matter of fact.

Most people take it for granted, but you leave a huge footprint when you go online. Tons of data about your activities and preferences are stored and poured over.

This can be used for good or ill but I would prefer to leave no record at all. You can't rely on people to keep your best interests at heart. You just have to take steps to watch out for yourself.

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