It is now possible to submit URLs to Google’s index directly in their core search results page. To do this, you only need to search for [submit URL to Google], and Google will display a box at the top of the search results that enables you to submit a URL to Google’s index.
This is just like the functionality of the public submit URL form tool, but places it directly as a smart interactive answer directly in the search results.
This tool allows you to submit any URL you want to the Google index. Then, Google will review it and see if they want to index the URL and show it in their search results. Keep in mind that even if you do submit a URL to Google for inclusion in the search index, it oesn’t mean that it will be inlcuded in the index, or that it will be shown in their rankings.
This was spotted by @naman_nan.