Thread: What are supplemental results?

If a page is shown that is in the supplemental results, Google indicates
this in their search results pages (SERPs). It doesn’t mean that your page
or site is banned or penalized. More often than not, pages that are similar
to other pages (or complete duplicates) are the ones that show up in the
supplemental results. It’s generally not something to worry about unless
tons of the pages on your site start showing up there. When that happens
you’ll need to figure out why and fix whatever might be causing the problem.

Thanks so much to impart here so much useful information. I like it.