@be846a9f TMK regardless of their hosting location, the instances listed on searx.space all use the same Searx or SearxNG code. The available search engines are hard coded. So you can never get results from Yandex via a Searx query unless you fork it to provide that engine. Engines can and do downrank/suppress results from different sources, but much of that is a black box to us. 

 @f86354ac 
Reading the searxng/searx/settings.yml

Leads the reader to believe you can configure/add any search engine you want. The docs suggest replacements available for the search_url 

 @be846a9f You are right.😃 Thank you for showing me. The instance admin can maintain the YAML to adjust the available engines. Maybe after I resolve some other technical issues on my board, I will spin up another SearxNG instance. 

 @f86354ac 
I went thru the history of searx space commits to see why they purge/add sources... there's no coherent logic. Many of the instances they remove are still there.