Web site anti-crawler bypass techniques | Dynamic IP + UA camouflage breakthrough restrictions

Learn the core logic of dynamic IP rotation in five minutes

Many websites will passRequest Frequency Detectionrespond in singingIP Behavior Trajectory Analysisto recognize crawlers. When the same IP initiates a large number of requests in a short period of time, the server triggers authentication or outright blocking. This is where a dynamic IP is needed toSimulate the geographic distribution of real usersrespond in singingpace of visitsThe

Take ipipgo's dynamic residential IP as an example, its real home network attributes can be perfectly integrated into regular user traffic. By settingAutomatic switching interval(30-120 seconds recommended) andRules for geographical distribution, allowing the system to display end devices from different regions and carriers with each request, which is naturally disorienting to anti-crawling mechanisms.

Dynamic IP Practical Configuration Manual

There are three key points to keep in mind when doing so:

When implemented at the code level, it is recommended that theFailure Retry Mechanism: When an IP is restricted, it automatically switches to ipipgo's alternate channel. Its API supports real-time return to the list of available IPs, with the proxy pool management tool can achieveMillisecond switchingThe

Easily overlooked details of UA camouflage

There are two common misconceptions about User-Agent (UA) masquerading:

1. Use of cold UA instead of exposing anomalies
2. Browser fingerprints not synchronized

The correct approach isCapture the mainstream device models of real users of the target website. For example, when crawling an e-commerce site, the UA should include the app's embedded browser logo; visit a video site with more mobile UA. ipipgo's endpoint parameter synchronization feature can automatically match theEquipment Model,Operating system versionrespond in singingscreen resolution, forming a complete chain of identity information.

Dynamic IP + UA golden combination program

When using the two in combination, it is important toConsistency of identity information::

• U.S. IP must correspond to English OS UA
• Mobile IP to match touchscreen version of web requests
• Simulate the active time of the corresponding region for different time periods

ipipgo's intelligent scenarios can automatically fulfill these related configurations. For example, when selecting the "Tokyo Young Users" mode, the system will provide the Japanese residential IP, mainstream cell phone model UA, and automatically generate a reasonable time interval.

Frequently Asked Questions

Q: How to choose between dynamic IP and static IP?
A: Dynamic IPs for high-frequency access (e.g., ipipgo's Residential Dynamic Pool), and static IPs when you need to maintain a session (e.g., account login scenarios).

Q: How does UA camouflage prevent it from being recognized?
A: In addition to the regular fields, be sure to update theBrowser kernel versionrespond in singingH5 Rendering Features, it is recommended to use ipipgo's UA template library.

Q: Why do you recommend ipipgo?
A: Its residential IP covers the global home network, supports the full protocol of SOCKS5/http/https, and each IP has gone through theReal-life equipment validation, can effectively circumvent traffic characterization detection.