Web proxies change IP addresses to make your presence on the internet anonymous. With your real IP address hidden, you can browse any website that you want, including those that are blocked. Your anonymity will mean safer and more secure surfing.

Using a web proxy (also called anonymous proxy) can change your IP address. There are free web proxies and professional web proxies. By the name itself, a free web proxy is one that does not require any fee for its usage. In the case of professional web proxies, you may be required to pay a one-time fee, an annual fee, or a monthly subscription to use the service.

In addition, an IP changer could allow you to bypass restrictions and browse blocked sites. There are many instances when you can be unfairly blocked from accessing some websites because of your IP address. One who is traveling abroad and wants to view US-based websites might get blocked. It could be due to government restrictions. By changing your IP address, you can get around and surf US-based websites without fear of being tracked.

Both free and professional web proxies can do an IP change. Free proxies abound, and they offer basically the same services previously mentioned. It is recommended that you choose to use a proxy server that uses encryption. Encryption is the process of converting plain text into non-readable form or cyphertext. This provides for more privacy and safety. This encryption happens while information travels between the sender and the receiver.

For the encrypted data to be readable when it reaches the receiver, it must be decrypted. By using a “key” the receiver returns the message or information to its original readable plain text form.

Data encryption has two categories: symmetric and asymmetric. Between the two, asymmetric encryption is considered more secure. In symmetric encryption, both sender and receiver of information share a special single key that encrypts and decrypts text. In asymmetric encryption there is a “pair” of keys created for the user. One key called the “public key” is used for encryption. The receiver to decrypt data uses the other called the “private key”.

There are some points for you to consider when planning to use a free IP changer. You must understand that it is expensive to run a proxy. If you would be allowed to use it without any fee, then there must be some other sources of funds. This is what makes free web proxies questionable as to integrity.

You should be careful about groups of hackers who might be behind these free proxies. They could easily extract useful information like passwords, account numbers and others. You could end up paying a much higher price than is what supposed to be “free”.

Before settling in on one free proxy server, be sure that it could be trusted. It would even be better if you pay a small fee for the services of a professional one. These are legitimate ones and not mere IP changers. They provide secure encrypted service.

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