LinkedIn is testing a "frequent viewer” feature that allows certain users with LinkedIn Premium to know if someone has looked at their profile multiple times. Krista Mollion, the founder of creative agency Unignorable Brands, first noticed the added detail last month. “I called it the ‘stalker alert,’” Mollion tells WIRED. Every few days, Mollion, who has nearly 79,000 followers on LinkedIn, gets a notification to “check out who has viewed your profile.”