What does "You've Been Blocked by Network Security" mean?

The underlying logic of network interception

"You've Been Blocked by Network Security" is a proactive response mechanism of network security systems to abnormal access behavior. When the server detects that the request frequency, behavior pattern, or protocol characteristics of a specific IP address exceed a preset security threshold, it will trigger protection rules and implement blocking. This mechanism is widely used in scenarios such as data scraping prevention, account protection, and resource abuse prevention.

PYPROXY's proxy IP technology optimizes network interaction patterns, providing users with access paths that comply with security standards and reducing the probability of triggering blocking.

Three core reasons for triggering interception

High-frequency access behavior

Servers typically have a threshold for requests per minute (e.g., 100-300 requests/minute). IPs exceeding this limit will be flagged as crawlers or attack sources. Sudden increases in access frequency, irregular intervals of requests, and repetitive operations can all trigger security systems.

Abnormal IP Address Characteristics

Poisoning of shared IP pools (such as being used by other users for illegal operations), exposure of protocol fingerprints of proxy IPs (such as lack of real browser characteristics), and frequent changes in geographical location will be identified as high-risk sources.

Protocol Layer Feature Exposure

Non-standard HTTP headers, missing cookie support, and abnormal TLS handshake parameters are protocol characteristics that may be identified as automated tool behavior by Deep Packet Inspection (DPI) technology. For example, PYPROXY's static ISP proxy can simulate the complete protocol stack of a real device, avoiding such problems.

Technical Paths to Overcome Interception

Dynamic IP Rotation Mechanism

By automatically switching outbound IPs through a proxy server, the access pressure from a single IP is distributed across multiple nodes. Dynamic ISP proxies support changing IPs on request or at time intervals, effectively circumventing frequency restrictions.

Protocol Fingerprint Simulation Technology

The advanced proxy service allows customization of protocol features such as HTTP headers, TLS fingerprints, and TCP window parameters, making it fully consistent with mainstream browsers (such as Chrome 120+). PYPROXY's residential proxy IPs have a built-in real device fingerprint database, significantly reducing protocol-layer risks.

Intelligent Traffic Scheduling Algorithm

Machine learning models based on historical intercepted data can dynamically adjust parameters such as request rate, operation interval, and access path. For example, in data collection scenarios, human operation patterns can be simulated by randomizing click flows and page dwell time.

The technical value of proxy IPs

The Advantages of Authenticity in Residential Agency Services

By allocating carrier-grade IP resources, the IP addresses of residential proxys are completely identical to those of real home broadband connections, inherently possessing low risk control attributes. Such IPs are particularly suitable for scenarios such as social media management and access to localized content.

Performance Balancing of Data Center proxys

Dedicated data center proxies offer stable connections with high bandwidth and low latency, suitable for large-scale data synchronization, real-time API interactions, and other similar needs. PYPROXY's dedicated proxy service ensures IP purity and avoids collateral blocking caused by shared resources.

Protocol Compatibility of Socks5 Proxy

It supports UDP/TCP dual-protocol forwarding and chained proxy configuration. The Socks5 protocol can penetrate some network layer traffic auditing. Combined with end-to-end encryption technology, it can effectively protect data transmission privacy.

Best Practices for Sustainable Access

Tiered usage strategy: Distribute highly sensitive operations (such as login verification) and ordinary requests (such as web browsing) to different IP pools.

Traffic cleaning mechanism: Filters abnormal data packets through intermediate nodes and corrects non-standard protocol fields.

Real-time monitoring system: Automatically diagnoses blocked response codes (such as 403/429) and switches to backup IPs.

PYPROXY, a professional proxy IP service provider, offers a variety of high-quality proxy IP products, including residential proxy IPs, dedicated data center proxies, static ISP proxies, and dynamic ISP proxies. Proxy solutions include dynamic proxies, static proxies, and Socks5 proxies, suitable for various application scenarios. If you are looking for a reliable proxy IP service, please visit the PYPROXY website for more details.