Rick Viscomi is a frontend engineer and web performance evangelist. He has leveraged the power of WebPageTest to help speed up the websites of the Travel Channel, Food Network, and HGTV. Since 2013, he has worked at Google to make YouTube fast.
Andy Davies first stumbled into web performance in late '90s when he was trying to deliver e-learning over dial-up connection speeds and has been hooked ever since.
He's currently Associate Director for Web Performance at NCC Group, where he helps clients to measure, and improve the performance of their web sites.
Andy regularly speaks about web performance and occasionally contributes to open source projects such as WebPagetest, he also wrote 'A Pocket Guide to Web Performance" for Five Simple Steps
Marcel Duran is a web performance engineer at Google. He previously worked to speed up high traffic websites for Twitter and Yahoo! He was also the Front End Lead for Yahoo!’s Exceptional Performance Team where he open sourced YSlow. Marcel also spoke at the Velocity Conference and co-authored Web Performance Daybook Volume 2 (O'Reilly).