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RKN Block Checker is a small Python CLI for diagnosing whether the current network connection is affected by Russian RKN or TSPU blocking. It tests blocking behavior layer by layer instead of only reporting that a site is unreachable. The tool can help distinguish DNS poisoning, TCP reset behavior, TLS DPI based on SNI, and ISP stub pages. This makes it useful for developers, system administrators, network researchers, and censorship-measurement workflows. It is designed as a console utility with straightforward installation and optional proxy support. Its main value is giving users a structured way to understand what kind of network interference is occurring rather than relying on vague connectivity symptoms.
Features
- Layer-by-layer censorship diagnostics
- DNS, TCP, TLS, and HTTP checks
- Detection of DNS poisoning and TCP resets
- TLS SNI DPI testing
- ISP stub page detection
- Python CLI with optional proxy support
Project Samples
Categories
Command Line ToolsLicense
MIT LicenseFollow RKN Block Checker
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