Programmable Search Engine
Oh, the old Google Custom Search Engine is still around, rebranded. Think it was called also Google Co-Op once.<p>I used it for some hacks i.e.: a people search engine once. And some SEO indexing checks before Google Search Console existed. Became pretty useless  as the index was then seperated from the real Google Index.<p>Looking at it there is a way to upload XML files. Mhmmmmm... prop. good starting point for the next Google Bug Bounty Hunt.