I checked the source code. There is none. This addon only adds a search engine entry

Starts to block questions from TOR or open proxies, just like google. No longer useable for me and i no longer trust them. Now owned by a advertisment agency.

Adds the lite search engine, without the other mining of data. interesting and Private!

Do not trust Startpage anymore, it was sold to an advertising company called System1
Link: https://www.datingnews.com/industry-trends/startpage-new-tools-allow-daters-to-browse-anonymously/