The Complete Guide to Open Graph Tags (And How to Test Them)
You share a link. Someone clicks it. Before they even read the page, they've already judged it — based on the preview card that appeared in their feed. That preview is built entirely from Open Graph tags . Get them right and your content looks polished and clickable everywhere it's shared. Get them wrong (or skip them entirely) and you get an ugly blank card or, worse, your site's raw URL. This guide covers everything you need to know: what OG tags are, which ones matter, how Twitter handles them differently, what developers commonly mess up, and how to test your implementation. What Are Open Graph Tags? Open Graph (OG) is a protocol originally created by Facebook in 2010. It lets you control how your web pages appear when shared on social platforms, messaging apps, and anywhere else that generates link previews. OG tags live in the <head> of your HTML, invisible to users but read by crawlers when your URL is shared. Think of them as metadata that tells external services: here's the ti
Continue reading on Dev.to Webdev
Opens in a new tab
