[megri]

Google that they have done away with the "supplemental results" label from the search results within Google.com.

When Google originally introduced Supplemental Results in 2003, our main web index had billions of web pages. The supplemental index made it possible to index even more web pages and, just like our main web index, make this content available when generating relevant search results for user queries

These are often pages with lower PageRank or those with more complex URLs. Thus the supplemental index serves a very important purpose: to index as much of the relevant content that we crawl as possible.