What exactly broke down: analyzing RKN/TSPU blockings by network stack layers. Rkn Block CheckerThe site won't open for you. The browser says "Failed to establish a connection". That's all it knows — and it's useless.
In the article, we'll break down how the four main blocking methods work, and look at a small Python CLI that checks them one by one and says "layer N is broken for you".
The tool is on GitHub, under MIT, you can install it via pip install rkn-block-checker. But what's more interesting is not the tool itself, but what's under the hood.
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