Crawler Agent

First, the core challenges of proxy IP anti-blocking In crawler scenarios, the three main culprits of proxy IP blocking can be attributed to: high-frequency access characteristics, IP quality defects, and exposure of behavioral patterns. For example, an e-commerce platform had triggered 20 requests per second from a single IP, resulting in the entire proxy pool being blacked out, and data collection was forced to...

When TikTok Crawler Meets Device Fingerprint Siege Data engineers at an MCN agency in Guangzhou found that their carefully written crawler program suddenly failed after May 2023 - not IP blocking, but device fingerprint exposure. Even with the latest Android emulator, the platform was still able to pass the GPU rendering mode + sensor count...

Core Value of Proxy IP in Multi-threaded Crawling In data collection scenarios, the quality of proxy IP directly affects the survival rate of the crawler system. When single-threaded crawling encounters anti-crawling mechanisms, multi-threaded architecture can improve efficiency through concurrent requests, but at the same time expose more features. Take an e-commerce price monitoring project as ...

First, the triple technical barriers to live data capture After the upgrade of Jitterbug's live wind control in 2024, the interception rate of conventional crawler requests reached 92%.After reverse engineering analysis, it was found that the platform uses a hybrid verification mechanism: ① dynamic assessment of IP reputation repository (commercial IP segment marking accuracy of 98%); ② device fingerprints and network protocols synergistically...

I. Special Needs for Dynamic Data Monitoring of COD Market in Southeast Asia Data from 2024 for the Manila region in the Philippines shows a fluctuating range of 47-821 TP3T in COD (cash on delivery) sign-off rates, with 151 TP3T of the fluctuations stemming from regional events (e.g., holiday traffic paralysis, community policing events). A headline apparel seller failed to...

Global Fashion Data Scramble: the Underlying Data Logic of Shein-Style Selection Butterfly Element searches captured by Shein via TikTok spiked by 4,27% in 2024, but 97% followers failed to capture the trend. We dismantled its data system to discover that the real competitive barrier lies in the construction of a city that covers 182...

Zillow's Machine Learning Anti-Crawl Model Demystified 2025 Zillow's updated anti-crawl system uses a three-layer detection mechanism: front-end behavioral fingerprinting (monitoring mouse trajectory and scroll wheel events), mid-end traffic characterization (QPS fluctuations and API call sequences), and back-end IP portrait modeling. The measured data shows that when ...

Legal Boundaries and Risks of Educational Data Harvesting Explained The 2023 case of Elsevier v. a university research team reveals that excessive crawling of scholarly resources may run afoul of Section 1201 of the Digital Millennium Copyright Act. According to technical details disclosed in the decision, the team was convicted of using data center IPs to send continuous requests (peak Q...