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On the whole, yes of course, since it could potentially be read by a billion people, which is 'mass'.
In actuality, it is read by a few hundreds a day, at most - probably (I mean actually read) - about the same number I could lecture to without technological aids (if the lecture theatre was well designed).
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But the main determinant of whether this blog counts as 'mass' is in the behaviour of the reader.
Is reading this blog part of a large trawl though other blogs and websites; or is it a specific, deliberate and much more focused thing.
If reading this blog is just one element in trawling the web, or marinating-yourself in the internet, then it is indeed part of the mass media - even if only six other people are reading it.
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Are you plugged-into the mass media?
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I sometimes think that the main difference between pseudo-Right wingers (such as libertarians and neo-conservatives and 'manosphere' types) and real reactionaries is indicated by whether they are plugged-into the media, or not.
On this analysis, if you life is dominated by the mass media you are a creature of the Left - and this is not affected by the nature of the media content.
A self-identified 'reactionary' who spends several hours per day engaged with 'reactionary' news sources, magazines, blogs and the like - is actually a Leftist.
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