What's your favorite source for internet intel? Thinking of the Renesys blog from long ago ... (see post for examples)

Some years back there was a company called Renesys whose blog gave fascinating details of how, say, Iran blocking the internet or someone cutting a sea cable would affect things.

They were purchased by Dyn in 2014, whose blog carried on the tradition. Now Dyn is owned by Oracle, and I don’t see any such intel shared by them.

Who’s a good outfit to give these kind of details today?

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Some examples of what the [Renesys blog](https://web.archive.org/web/20140603223303/http://www.renesys.com/blog/) used to …

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