Don’t Hide Text Or Links
Someone posted a comment in a forum I use regularly asking if it was possible to add a table of there keywords to the homepage and make it so the users cant see it but google can.
I see many sites with a whole bunch of keyterms in there footer on every page but this isn’t needed if you optimize your pages correctly. Who really wants to see a sites keyterms in the footer on every page, it isn’t really user friendly and puts a lot of people off.
If you have to put your keyterms in the footer of every page don’t hide it, google is aware that people hide text for search engine optimization purposes and now penalises websites that do it.
Ranking highly for search terms is pretty straight forward and can easily be achieved without stuffing keyterms into each page. There’s still seo companies that use this web 1.0 technique and if you every hire a seo company that uses this technique then I suggest asking them to stop all work and use a more reliable and update company.