Unique user count inflated by 27%, for search engines by 46%

In a controversial statement, Nielsen//NetRatings says that roughly 27% of unique visitor count is inflated due to users repeatedly deleting their cookies. The overstatement can range from as high as 46% for search engines, portals and community sites to as little as 9% for travel sites.

In a controversial statement, Nielsen//NetRatings says that roughly 27% of unique visitor count is inflated due to users repeatedly deleting their cookies. The overstatement can range from as high as 46% for search engines, portals and community sites to as little as 9% for travel sites.