How to change URL previews, to Tool Tips on-hover

@Josh NZ are you using Alt Tags to your images? 

This hover text is actually coming from adding the Alt Tag attribute to an image. It's a best practice to use - https://help.klaviyo.com/hc/en-us/articles/360034711931-Accessibility-in-emails-and-forms-best-practice-reference
 

Or as Klaviyo also says it here: 
Always add alt text to your images. Certain inboxes, including Outlook and Apple Mail, will not display images until a recipient opts in to see them. Including alt text helps recipients using these inboxes to understand what an image is meant to convey, and also supports accessibility. 

Omar Lovert // Polaris Growth // Klaviyo Master Platinum Partner

We help with e-commerce growth through CRO, Klaviyo and CVO