Our site has drop from some major keywords now, maybe google's algorithm has change a bit.
title, backlinks are most factors.
Maybe our site is an authoritative site in our industry, so we only link to a few sites, but has a huge insite links, and every articles would turn to login page, uses need to login to read it. ---do you think that would huge hurt by google?
Majory keywords are droped far away, still indexed, how can I do to jump up now?