Per a requirement of LinkedIn, your platform must be served over SSL in order to add as a login option.

Setting up SSL will require Localist to know what custom domain you plan on using (it does not have to be set up or live). After you have chosen a custom domain we can issue a certificate signing request, which includes a public key. Once this is signed by a certificate authority and sent back to Localist we can pair it with the private key that we generate.

After SSL is set up, Localist will add a LinkedIn button (like the Login With Facebook button) to the login modal.