: a record of the activity (such as clicks) of a user on a website
This data isn't being grabbed by the NSA or FBI, but by commercial brokers who buy complete "clickstreams," or Internet browsing records, of millions of people. Hiawatha Bray
A report earlier this year from Jupiter Communications indicated that even in the generally tech-savvy world of online retailers, only 22 percent of companies manage to make productive use of the consumer clickstream data (the interactions of an individual consumer with a retailer's Web site) available to them. Joe Ashbrook Nickell