Multi-Header Request Tip: cURL Bulk Data Processing

This is a great trick! Header camouflage with cURL!

Older drivers who engage in data collection know that the anti-climbing mechanism of the target website is just like radar, locking your real IP in minutes.This time it is necessary tolit. paint holding two brushes (idiom); fig. to work on two tasks at the same time: Both the use of proxy IP stealth, but also to learn to the request header (Header) to change the skin. Take cURL, many people will only use -A parameter to change the User-Agent, in fact, this is just getting started.

Recently, I helped a friend to debug a script and found an evil case: an e-commerce platform obviously had a proxy IP on, but it was still banned with a random UA, which was later added in the request header.Accept-Language: zh-CN,zh;q=0.9This cold parameter directly doubles the success rate. This indicates that the anti-climbing system will nowCombined 20+ Header fieldsto recognize machine traffic.

I'll teach you how to make fake identities in bulk.

First, prepare a headers.txt file, write a different combination of Header on each line, to give an example of the configuration in a real project:

Connection: keep-alive
Accept: text/html,application/xhtml+xml
Accept-Encoding: gzip, deflate, br
Cache-Control: max-age=0

Connection: close
Accept: /
Accept-Encoding: identity
Cache-Control: no-cache

Note the deliberate use ofmix up capitals and lower case letters(like Keep-Alive written as keep-alive), some older systems are case sensitive. When using ipipgo's residential proxy, remember to add these three lines to the script:

-x http://用户名:密码@gateway.ipipgo.com:9021
--proxy-anyauth
--connect-timeout 20

The record of the tawdry operation in the actual battle

Last week with this method to grab limited sneakers, found a metaphysical phenomenon: the same Header combination, with different regions of the proxy IP success rate difference of three times. Later, I saw in the background of ipipgoServer Room IP Segmentrespond in singingHome Broadband IP Segmentof survival rate comparisons, cut decisively to the residential agent pool.

Here's the point:Don't switch Headers in cyclic order! It's best to use a random number generator to disrupt the order, or get a weight assignment algorithm. I got lazy once and used a sequential loop and ended up getting blocked every 30 requests, regular as an alarm clock.

A Guide to Avoiding Pitfalls (Blood Lessons Edition)

The QA session says a few common mines that newbies step on:

Q: Why is it still recognized after adding Referer?
A: 80% of the Referer's domain name and the current request does not match, such as from Taobao jumped to Jingdong but did not change the Referer. ipipgo's IP location function, automatically match the proxy region corresponding to the mainstream website domain name.

Q: Should cookies be replaced randomly or not?
A: Depends on the specific website! Some platforms record cookiesdevice fingerprint, a sudden change instead triggers validation. It is recommended to use ipipgo's short-term proxy to test different strategies first.

Q: What should I do if I encounter Cloudflare protection?
A: This is really hard to get, but there's a wildcard: add in the HeaderUpgrade-Insecure-Requests: 0And then with ipipgo'sHighly anonymous agents(Note that you have to choose a node that supports the HTTP/2 protocol).

Why do you recommend ipipgo?

After trying a dozen proxy services, I ended up using ipipgo for the long term for three reasons:
1. Their homedynamic port mappingTechnology that automatically bypasses common blocking tactics
2. Customer service response speed is like a hangman, last time I raised a work order at 3:00 a.m., I received a solution in 5 minutes.
3. The pricing scheme is friendly to small and medium-sized projects, unlike some of the big players who have to pay from $100,000 per annum

The key thing is to supportHeader Whitelist AuthenticationIf you want to use this feature, you can write your account password directly in the request header, which is much safer than the traditional authentication method. Specific use of the official documentation, it is not convenient to go into detail here.

Lastly, don't waste your time on free proxies! Last year, a friend tried to save trouble by using a free IP and ended up collectingMalicious code injectedThe entire database is obsolete. Professional things are still left to the regular army like ipipgo reliable.