White Hat Ethical SEO
Try not to stuff keywords into your tags or attributes, if you do so Google can penalize your site and send you to the bottom of its index. It is considered an unethical practice. If a search crawler detects this taking place your site can get disappear from the index for an indefinite period of time.
Another unethical practice is the creation of landing pages for the sole purpose of funneling the user to a particular page. Avoid creating phantom spam pages and write textual content that your user can benefit from. Imagine you get to a site or landing page where the content is repetitive and tiresome, you’ve got to ask yourself. “Would I read this?”. Users like search engines will mull over your site then leave in regret forever clicking on your link.