Does these certificate expire? If I upload this on my linked in or other site?

Answer 1

No expire date for SL certificate
Edited:Mickel Sánchez

Answer 2

Innocent Israel the question can be published here, since it is content related to Sololearn.

As far as I know, they do not expire. But before uploading them and adding them to other platforms, please keep in mind that certificates do not have real value, they are only motivational.