What is HSTS in SSL?

Question

System administration

In ISP there is such a jackdaw - enable HSTS.
The tooltip says that increases security.

Where can I read more about this. How exactly does it increase security, at the expense of what, what are the advantages / disadvantages, who needs it, who does not need it?

Answer 1

Wikipedia is!
https://ru.wikipedia.org/wiki/HSTS