To embed a Vimeo video in Squarespace, follow these steps.
A.Use Vimeo Embed Code
#1. First, on Vimeo, hover on the video and click on the Share icon
#2. Next, click on the Embed code and Copy
#3. Edit the Squarespace page where you want to embed Vimeo video > Add a Code Block
Paster the code
#4. Result
B.Use Video Block
#1. First, on Vimeo, hover on the video and click on the Share icon
#2. Next, copy the video link
#3. Edit the Squarespace page where you want to embed Vimeo video > Add Video Block
#4. Click Add Video and choose ADD FROM LINK
Enter your link and Add
Result: