Products Web Articles by Heather Mahan Heather Mahan is a developer. http DevTools Timeline: Now Providing the Full Story We've upgraded the Timeline panel for Chrome DevTools to give developers more insight on their site’s runtime performance. Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 3.0 License, and code samples are licensed under the Apache 2.0 License. For details, see our Site Policies. Java is a registered trademark of Oracle and/or its affiliates. Last updated January 3, 2018.