Various browsers and third-party products aim to protect children and others from inappropriate and offensive content by use of rating systems. If you have a site with such content, you best serve the public by accurately rating it as such. If your site has no such content, you risk having access to it blocked in error unless you rate it since some schemes block unrated sites by default.
There are two types of ratings, those where you rate your own page or site, and those where you submit your page or site for rating by others. There are three types of results produced, either a PICS (Platform for Internet Content Selection) tag that you add to the HEAD block of your page, the placement of your page or site in a "white list" or "black list" database used by some products, or simply permission to display a graphic on your site. There is no charge to use any of the rating systems listed below.
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