[yjftsjthsd-h]

https://www.investopedia.com/articles/markets/030416/googles... and https://www.cnbc.com/2021/05/18/how-does-google-make-money-a... (first results I could find) both say 80% of Alphabet’s revenue comes from Google ads; unless you have numbers to say otherwise, I think it's pretty reasonable to call that their primary business

[austincheney]

> Search is Google’s most lucrative unit. In 2020, the company generated $104 billion in “search and other” revenues, making up 71% of Google’s ad revenue and 57% of Alphabet’s total revenue.

From your second source. I guess you were conflating ad revenue to online advertisements. Its all ad revenue, but its not all online advertisements.