Open Instagram and tap the plus icon to create a new post
Select the photo or video you want to upload
Tap Next
Edit the post if needed, then tap Next again
Add your caption
Paste the website link in the caption
Tap Share to publish the post
If you want the link to be more visible, add it in your bio and mention “link in bio” in the caption
For clickable links on posts, use Instagram ads or add a link sticker in Stories if available