What makes a good link card
- Title. Aim for 60 characters or fewer so it is not cut off. Lead with what the page gives people.
- Description. Around 100 to 155 characters. Say who it helps and what they get.
- Image. Use 1200 x 630 pixels, a PNG or JPG under 1 MB, with the key words well inside the edges.
- Address. Use the full https address so every feed shows the same page.