Install Google Analytics and check there. I'm seeing the same thing, most of that extra traffic is search engines/bots. Google Analytics ignores them and gets you only meat user data.
Internet Slow Down Day
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This is targeted for those who are stateside mostly, but this could end up affecting everyone.
I saw the campaign mentioned on Reddit, and it seems like it would be pretty simple to add the script into a widget to display on your NodeBB install if you were interested in doing something along those lines.
Here's the campaign sign up if anyone is interested and has a lot of US traffic.
