With this tool you can check the Open Graph tags on your or a competitor's website. Make sure your OG tags are valid and are tested properly.
Open Graph tags help other websites display your webpage according to user-defined fields you list in the header section of your HTML.
You can define the images, title, and description that you want to represent your webpage.
If you don't set the Open Graph data, it will be up to the other websites to figure out how they want to display your info. And it could be something that doesn't represent your brand well.
Here are some of the most common fields in use today:
For a full list of OG tags available, please visit either the Facebook Guide for Sharing or the Open Graph protocol website.