Kleiner Perkins Caufield & Byers led a $9 million funding round for consumer tracking company FullStory, the company announced today.

FullStory lets businesses watch their customers’ moves on their website — DVR-style. The Atlanta-based company, which was cofounded by Google engineer Joel Webber, has partnered with BugSnag to record and show “console errors” to help engineering teams target bugs faster. It has also integrated a note-taking feature that allows team members to make notes in playback sessions, for everyone to see.

FullStory says it will use the funds from this round for marketing expansion and to enhance FullStory’s system.

Google Ventures and Atlanta-based investor Tom Noonan also participated in today’s round.

“Ever get on an elevator and hit the ‘close door’ button? You never hit it just once. You tap that sucker like you’re frantically playing a video game. Well, as we used FullStory to improve FullStory, we recognized this ‘rage click’ pattern happens a lot on the Web for all sorts of reasons,” said FullStory’s founder and CEO, Scott Voigt. “Perhaps a page is slow to load, or a bug is causing an error, or an element was never meant to be clickable in the first place. We added these click heuristics to FullStory such that it can automatically and in near real-time tell you if a user on your site is raging.”

Voigt said that rage clicks are just “the tip of the iceberg,” and some more updates will be coming out soon.

FullStory has raised $10.6 million in funding since it was founded in 2014.