NxFilter Tutorial
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Writing your own remote filtering agent
You may want to write your own remote filtering agent. We will explain you the protocol we use for remote filtering query.

Remote filtering query
For remote filtering query, what you need is simple. You can find which domain is blocked by an HTTP query to your NxFilter or NxCloud server like below.

What you need is to replace token value and domain value in the URL above according to user. When you get '/BLOCK' as the response from your HTTP query, it's blocked. Otherwise it's allowed.