Bra Analytics Tools: Hub Audience

We explore the audience

Before each author on Habré, the question arises: “In what hubs should I post an article”? Of course, the answer depends primarily on the topic. On the other hand, many articles are quite broad and you have to carefully choose which three hubs to write. Habr himself does not provide such a tool for analysis. And what do the inhabitants of Habra, when the tool is needed, but it is not? They write it!



Then the thought came to me that it would be nice to have a simple visualizer that would produce simple statistics on the hubs and their joint audience, for example like this:





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The picture immediately shows how far the readers of different hubs intersect and whether it makes sense to replace any of them.



Imagine what we want to write in the media hub and count, but is it not worth it to post an article in the Statistics hub in IT ? In order to calculate the expediency, it is necessary to find the intersection of the audience of hubs:







We see that, in fact, an overwhelming number of hub readers see articles both there and there, and this is a good signal that it is possible to consider the available alternatives.

General application

Why else would you need such a tool? (The author did not find a better analogue for the word tool.) Suppose that you are a representative of a company and want to see how many readers of a certain hub subscribed to a corporate blog after writing this article. For example, you are going to write the Qt 5 Check Framework and want to see how many people from the Qt hub subscribed to the PVS studio corporate blog, then the decision to build two charts “before” and “after” of the following type (here it’s only “after”):







If the overall trend is not very visible on the graph, then our tool should also provide textual information about the intersection, in the spirit of:

57% of pvs-studio(company) intersects with qt_software

Both the hub and the corporate blog

There are such companies on Habré that have both a corporate blog and the hub dedicated to the company. For example, in Yandex: a blog and a hub . The audience of the blog is 11k, and the hub is 85k, which means it would seem, why post it on the corporate blog, if you have already placed it in the hub? Surely the readers of the blog and the hub read, with a ratio of 1 to 8 according to the readers. Let's check this guess:







As you can see, about half of the readers of a corporate blog do not read a common hub, and so it makes sense to post in both hubs.

General and technical blog

And it happens that there is a common hub, for example, Vkontakte and a technical hub Vkontakte API and the question arises, does it make sense to post in both? Will the second audience be completely in the first? And it's easy to check!