According to the tag-info, convergence-divergence is intended for convergence/divergence of sequences and series. Here is the revision history for the tag-excerpt and the tag-wiki.
However, in practice the tag is used also in connection with improper integrals. You can find plenty of posts tagged convergence-divergence+improper-integrals (past questions, deleted questions ) or convergence-divergence+integration (past questions deleted questions).
It could be useful to decide whether or not integrals belong under the convergence-divergence tag. And, depending on the outcome of the discussion, either update the tag-info or retag some older posts which do not belong here.
Question: Does divergence and convergence of improper integrals belong under the convergence-divergence tag?
As a side note, I will also mention that the tag divergence-operator still needs some clean-up, since it was used in many questions concerning convergence and divergence of series and of integrals. Many questions which have this tag alongside convergence-divergence, sequences-and-series, integration or improper-integrals are likely in the need of retagging. For those questions that are related to integrals, it might be useful to know first whether convergence-divergence belongs to those questions, too. (This tag was originally called just divergence. It was renamed in December 2019, the new name is less likely to be used incorrectly.)