I have found around 20 search engine pages worth lemmings.world pages, where one search engine page is 10 results, so in total like 200 indexed subpages of the lemmings.world ?
https://www.ecosia.org/search?q=site%3Alemmings.world&p=19
https://duckduckgo.com/?hps=1&q=site%3Alemmings.world&ia=web
Is it too low or too much considering amount of content posted here?
I wouldn’t say it’s too much or too low, in the end it doesn’t really matter due to the nature of the fediverse. Some of it is indexed here, some of that somewhere else, the important part is that it’s indexed.