For internet professionals in China, using proxy IPs has become an indispensable part of daily work. However, with the wide variety of proxy IPs available, finding one that is both efficient and reliable can be challenging.

While most proxy IPs are paid services, some individuals with limited financial means may turn to free proxy IPs. However, the stability and efficiency of free proxy IPs are often low.

So, how do you determine if the proxy IP you are using is effective? Below are several methods explained in detail.

 

I. Testing with Baidu Queries

 

This method involves browsing Baidu webpages and examining the returned pages to distinguish the effectiveness of the proxy IP. Sometimes, bugs may cause failures, but if the returned page is not a Baidu search page and exceeds 5000 characters, the IP is considered valid.

 

II.Checking the Return IP Based on Browsing Activity

 

After browsing websites, check if the return IP matches the proxy pool's IP. If it doesn't match, the proxy IP is invalid. If it matches, the IP is considered valid.

 

III.PHP Validation

 

Set up a proxy in PHP and then browse Baidu search or other accessible websites. Differentiate the effectiveness of the proxy IP based on whether the returned status code is equal to 200.

 

IV. QQ Certified Proxy IP

 

Enable web login in QQ, set the network type to "HTTP proxy" or "SOCKS proxy," and then input the proxy IP. If the connection to the server proxy is successful, the proxy IP is valid. If not successful, the IP is considered invalid.

Conclusion

 

Although these methods may seem straightforward, testing one proxy IP at a time can be time-consuming, considering the multitude of free proxy IPs available. If you desire to use high-quality proxy IPs, it is strongly recommended to use IPHTML proxy IPs. With guaranteed product quality, competitive pricing, abundant resources, and comprehensive customization services, it is the best choice for improving work efficiency.

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