This promoted content is produced by a member of The Drum Network. The Drum Network is a paid-for membership product which allows agencies to share their news, opinion and insights with The Drum's audience. Find out more on The Drum Network homepage. Approximately one-third of marketers are still in the dark about what Google's CWV update means for them With just three months to go until Google rolls out its highly publicised Core Web Vitals (CWV) update, a new study by digital marketing agency Impression has revealed that one-third of marketers are still in the dark about what the update is, or what it means for them.