Value:
Indicates whether or not hidden text was detected anywhere in the body of the page.
Background:
Hidden text is used by spammers to hide content from users that is intended solely
for the purposes of manipulating search engine rankings. Spammed content often sounds
and looks unprofessional, which makes the practice tempting to would-be spammers.
Recommendation:
Using tricks such as hidden divs or other questionable practices is not recommended
and could cause your site to get banned.