In order to prevent bots from putting too much pressure on the server, sites usually set up anti-crawling mechanisms, the most common of which is IP restrictions. If a user's IP is accessed frequently, it is easy to be blocked. To prevent IP blocking, many people exchange IP addresses by using proxy IP software. However, the question is, which proxy IP software is the best to use? Is it safe to use a free proxy IP? This is what everyone needs to know. Sending and receiving information is...