Pinterest Rich Pins sound like a marketing thing, but the actual implementation is a developer's job. If a client asks you to "set up Rich Pins" and you've never done it before, here's exactly what you need to know, no fluff, just the technical breakdown. What Pinterest actually needs from your HTML Pinterest validates Rich Pins by crawling a URL you submit and looking for either Open Graph meta tags or schema.org structured data in the . For most blog or article-based sites, Open Graph is the simpler path. The minimum viable set of Open Graph tags for Article Rich Pins: For product Rich Pins (e-commerce), you'll also need: Validating before submission Pinterest provides a validator at developers.pinterest.com/tools/url-debugger. Paste in one of your URLs and it will tell you exactly which tags it found, which are missing, and whether you're eligible for Rich Pin approval.…