To upload the Canva website to Squarespace, you can follow these.
#1. First, edit your Canva website
#2. Click Share on the top right of the screen
#3. Click More
#4. Click Embed
#5. Click Embed
#6. Copy embed code. In my example, we will use HTML embed code
#7. Paste the embed code to Code Block or Page Header Code Injection
#8. Save, Preview to see the result.
#9. Note
If you use Smart Embed Link
You will need to add it via Embed Block