Doesn't this only allow you to search your own page, as mentioned at the URL you linked? "With Google Custom Search, add a search box to your homepage to help

Doesn't this only allow you to search your own page, as mentioned at the URL you linked? "With Google Custom Search, add a search box to your homepage to help people find what they need on your website." (emphasis mine) Their video also seems to indicate the same thing: https://youtu.be/Qd9z48Bo8ZA https://youtu.be/Qd9z48Bo8ZA They say you can search "one website or even a specific topic across multiple websites". This is specifying multiple domains, not a full-index search.