Are Mastodon instances such as this collectively, or individually, indexed by any search engine?

Is Google search my best bet? (I do use Google.)

I guess that https://mastodon.social/ is indexed by Google, because I found something with Startpage.

bsd.network toots apparently not indexed by Google; https://www.google.com/search?q=%22Mastodon%22+site%3Absd.network

I followed the instruction, pasted the URL into the search field (at https://bsd.network/web/getting-started)

Nothing is found.

What am I missing?