rkn-block-checker 0.6.0 Adds Local Web UI and Reduces False Positives on Anti-Bot Responses
The open-source tool rkn-block-checker received a major update in version 0.6.0 that improves accuracy when detecting Russian ISP censorship blocks. The previous version incorrectly flagged sites protected by anti-bot systems as blocked by Roskomnadzor because it searched for common stub-page strings without checking HTTP status codes. A new logic layer now separates rate-limit responses such as HTTP 429 from genuine provider stub pages that typically return 200 OK or 451. The release also introduces a fully local Web UI built with Python’s standard-library HTTP server and vanilla JavaScript, eliminating the need for heavy frameworks. Results stream in real time via NDJSON so users can watch checks complete without polling or WebSocket connections. The project remains available on PyPI and GitHub under the MIT license.
HabrSep 13, 2026Translated from Russian