How are web content categories determined?

First, we use computer analysis to categorise websites, then human reviewers check those results.

If a website is popular and its content is stable, we store it in a content rating list. If a website isn’t popular enough to have an entry in this list, or if its content changes frequently, we ask a content rating service to determine its category. The content rating service tells us whether the website belongs to its category of adult websites, or if it’s a general interest site, or that the website is unknown.

Even using the latest technology, no system of this type can be 100% accurate. Web filtering might sometimes categorise a website differently than a parent or site publisher thinks it should.

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