Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

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Hot Network Questions in the right-hand sidebar, the “hot” tab on each site, and on stackexchange.com.

“Hot questions” can refer to two things:

In both cases, questions are included if they hit a large “hotness” in a short time, with hotness determined by score, views and number of answers. The formulas for both cases are different; e.g. questions without answers never appear on the Hot Network Questions, but can appear on a site's "hot" tab.

The "hot" tab of the per-site meta is used to obtain questions to show in the "Hot Meta Posts" block part of the on the main site; for questions about that, use that tag as well.

The network-wide list has further adjustments to avoid being completely dominated by a site, and entire sites can be excluded from the list on a case-by-case basis. Inclusion is fully automatic, and cannot be controlled even by moderators (not without major side effects such as closing the question).

There is no logging of which questions have been included in the past.

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