When we use web crawlers to collect data and information, we often return to the response of 503 or 403, that is, the IP we use is forbidden to access, that is, the frequency in the crawling process is very high, touching the threshold set by the target website.
In fact, the proxy is not omnipotent. It can be used arbitrarily. This view is wrong. The IP provided by the proxy is also IP. If it is too frequent, it will be blocked and disabled. Therefore, it is also necessary to pay attention to some problems in the use process to avoid restrictions.
There are usually two solutions to this situation in use.
1. Reduce the access speed and reduce the pressure on the target website, so that the target website is comfortable, but the capture speed is slow and the working time will be longer.
2. Replace the IP. Each proxy must be replaced only after it is sealed. It must be replaced before it is sealed, so that the proxy IP can be recycled to solve the anti crawler mechanism.
When selecting proxies, you also need to select some high-quality proxy IP to ensure IP quality and promote collection progress. It is recommended to try Roxlabs, which is the preferred proxy.
