HTTP Proxy IP Request Masquerade | HTTP Proxy Request Header Depth Masquerade Technique

How exactly is the HTTP proxy request header disguised to be safe?

Many people in the use of proxy IP thought that changing the IP address will be all right, not knowing that the website anti-climbing system will accurately identify the proxy behavior through the request header characteristics. Last year, an e-commerce platform blocked crawler requests in the83%'s blocking reasons all stem from anomalous request header characteristicsThe

True camouflage requires three things:Request header field integrity, parameter dynamization, device fingerprinting simulation. As an example, ipipgo's residential proxy service can be used with the following techniques to achieve deep camouflage:

The five core request headers must be handled this way

1. User-Agent camouflage: Instead of using fixed values, it is recommended to match the browser version corresponding to the region from ipipgo's IP generics library. For example, when using a US residential IP, you should choose a Windows UA with a higher percentage of Chrome 120+ versions.

2. Accept-Language field: Must correspond to the official language of the country where the IP is located. Standard language labels such as en-US (United States), ja-JP (Japan), etc. are automatically populated after obtaining the country code via ipipgo's IP geolocation API.

3. X-Forwarded-For field: This is the key field for determining the proxy chain. It is recommended to useReal Client IP + Proxy IPThe format of the combination, e.g. "X-Forwarded-For: 121.12.34.56, 45.76.89.12″.

4. Calibration of time zone parameters: Dynamically generate the timezone offset to match the IP location via JavaScript. For example, when using Brazil proxy, the time zone should be UTC-3, corresponding to the field "GMT-0300 (Brasilia Time)".

5. Dynamization of connection parameters: To avoid a fixed Keep-Alive parameter, it is recommended to randomly generate a combined form of fields such as Connection, Upgrade-Insecure-Requests, and so on.

The Golden Rule of Dynamic IP Rotation

It's not enough to simply modify the request header.IP address and request header characteristics must be dynamically associatedThe intelligent rotation system of ipipgo supports two modes:

passive mode: Automatically switch to a new IP when the target site returns a 403/429 status code, suitable for small and medium-sized collection needs.

active mode: Actively change IPs according to the preset number of requests (recommended 50-200) or time interval (recommended 5-15 minutes), suitable for long-term stable operation of business systems.

This test tool can be used to verify the camouflage effect when testing:

curl --proxy http://username:password@gateway.ipipgo.net:port
-H "User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36..."
https://httpbin.org/headers

Frequently Asked Questions QA

Q: What if the disguised request is still recognized?
A: Check the IP purity, it is recommended to use ipipgo's exclusive residential proxy. Also confirm that the device fingerprint parameters (e.g. screen resolution, Canvas fingerprint) in the request header are complete.

Q: How to set the frequency of dynamic IP switching?
A: Refer to the access frequency limit of the target website, usually no more than 500 requests per IP per hour. IP availability status can be obtained in real time through ipipgo's API.

Q: How do I test if the disguise is successful?
A: Use a third-party testing site (e.g., ipleak.net) to verify IP and request header geographic consistency, as well as to check that the TCP connection fingerprint presents itself as a common home broadband characteristic.

Available through ipipgoPool of 90 million+ residential IP resourcesWith the above request header depth camouflage technology, it can effectively reduce the probability of being recognized. Its full protocol support and intelligent routing system can automatically match the optimal proxy nodes, which is especially suitable for scenarios that require high cache access.