Gray Hat SEO is an SEO practice that's riskier than White Hat SEO, but one that may or may not result in your site being banned from search engines and their affiliate sites.

Gray Hat SEO is an SEO practice that's riskier than White Hat SEO, but one that may or may not result in your site being banned from search engines and their affiliate sites. Generally, Gray Hat SEO practices belong in neither the Black Hat nor White Hat category because the terms of service regarding the issue are unclear.