Are tabs SEO friendly?
Yes. We've taken great care to ensure that tab content is visible to search engines.
For example, the content for ProTabs tabs is stored in a theme snippet file , so it's rendered to the page using Liquid theme code in the exactly same way as the main product description. It truly is 'on page' content so it's as visible to search engines as anything else on the page.
In fact, using Tabs may even improve SEO because it allows for much more relevant content to be added to the page without it becoming visually cluttered.
We have some reviews praising Tabs for increasing the store's SEO rank (see the screenshot below).