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This article introduces the relevant knowledge of "how agent IP breaks through anti-crawler". In the operation process of actual cases, many people will encounter such difficulties. Next, let Xiaobian lead you to learn how to deal with these situations! I hope you can read carefully and learn something!

A large number of crawlers can seriously affect the server, so each website has its own anti-crawling mechanism, depending on whose actions are more effective. How do reptiles respond to anti-crawling mechanisms? The following will show you how to deal effectively with anti-crawlers.

Currently, the most effective way to anti-crawler is to use proxy IP! Why do you say that?

Due to limited ip resources, the site will use ip restrictions. The best way to break ip limits is to use proxy ip, such as using, extract ip from it, build ip pool, and break ip limits by switching ip.

In addition to using proxy IP, there are other aspects to note:

1. Normal access speed.

Some websites with full safeguards may prevent you from quickly submitting forms or interacting with the website. Even without these security measures, downloading large amounts of information from a website can be much faster than the average person.

So, while a multi-process program may be a great way to input pages quickly--processing data in one process and entering pages in another--it's a terrible strategy for well-written crawlers. Or try to load the page once and minimize data requests. If conditions permit, try to add a bit of time between visits to each page, even if you want to add two lines of code. Reasonable control of speed is a rule you should not break. Excessive consumption of other people's server resources puts you in an illegal state. More seriously, this can drag down even a small website. Dragging down websites is immoral and completely wrong. So please control the collection speed!

2, establish a reasonable PPTP request header, the requests module is not only to process the site form, but also to set the request header tool.

PPTP's request header is the attributes and configuration information transmitted each time a request is sent to a network server. PPTP defines a dozen odd request header types, but most of them are not commonly used.

Each website has a different request header. How do I get this request header? You can use the Fiddler or audit element approach I mentioned earlier, which can be configured according to the actual situation.

3. Set Cookie knowledge.

Although cookies are a double-edged sword, handling cookies correctly can avoid many collection problems. This website will use cookies to track your visit, and if you notice unusual behavior on the crawler, your visit will be interrupted, such as filling out a form quickly or browsing a large number of pages. While these actions can be disguised by shutting down, reconnecting, or changing IP addresses, no amount of effort will be in vain if cookies reveal your identity.

Cookies are essential to the collection of certain websites. In order to keep a website logged in, you need to save a cookie on multiple pages. Some websites don't need to get a new cookie every time they log in, they just need to save an old login cookie.

If you are collecting one or several targeted websites, it is recommended that you examine the cookies generated by these websites and think about which cookies are crawlers.

Cookie information can also be filled in more practically. But requeststs already wrap a lot of operations, cookies are automatically managed, and sessions remain connected. Before obtaining cookies, we can visit the target website and establish a session connection.

4. Pay attention to hiding the input fields.

In hidden HTML tables, hidden fields can display field values in the browser, but in the user (unless viewing the page source code). As more and more websites begin to use cookies to store state variables to manage user state, hidden fields are primarily used to prevent crawlers from automatically submitting forms.

The content of "how agent IP breaks through anti-crawler" is introduced here. Thank you for reading it. If you want to know more about industry-related knowledge, you can pay attention to the website. Xiaobian will output more high-quality practical articles for everyone!

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