X header size
The recommended X (Twitter) header is 1500 × 500 pixels (3:1). Your profile photo overlaps the lower-left, and phones crop the top and bottom slightly, so keep text toward the center-right, as our templates do.
Ideas
- What you post about, in one line.
- A schedule (“New thread every Monday”) or your website.
- Your brand colors, or a photo with the darken slider for readable text.