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How does a crawler use multiple IPs?

Many websites have anti-crawling measures that are based on the IP address used to access the site. When visiting a website, the IP address is logged. If the server detects improper behavior, it may consider the IP to be a crawler and restrict or block access. So, what can be done if the crawler proxy IP is insufficient?

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The most common reason for crawler restrictions is due to excessive crawling, which exceeds the time limit set by the target website, resulting in a ban from the server. As a solution, many crawler workers use proxy IPs.

However, the use of proxy IPs may result in insufficient IPs, leading to increased costs if more IPs are needed. To address this issue, you can:

  1. Reduce crawling speed and IP consumption, which can reduce productivity and work speed.

  2. Try using a different proxy provider that offers more available proxy IPs. Ensure to choose a reliable provider and avoid low-quality proxy IPs.

  3. Improve crawling technology by reducing redundant processes and increasing program efficiency, reducing the consumption of IPs and other resources. For example, optimizing the program code can increase the crawling speed and reduce the need for multiple IPs. Multi-threaded or distributed crawling technology can also disperse crawling tasks and reduce the risk of losing a single IP.

In China, MaxProxy is a top-notch proxy IP service provider, offering high-quality IPs, a large resource pool, and excellent service capabilities. This provider offers a great user experience and is worth considering.