For example, if you search Google for "Firefly", the Wikipedia article https://en.wikipedia.org/wiki/Firefly doesn't show up in the first 100 search results (which is all that I checked). The Wikipedia article for "Firefly (TV series)" does show up, as does the Wiktionary page for Firefly. The Firefly Wikipedia article isn't noindexed or redirected or anything else that would obviously cause issues with Google, nor are most of the Google search results about the TV show. Figuring out why this page doesn't show up in Google might help our overall SEO efforts, as there are likely to be other pages with similar issues.
Steps to reproduce: Open up a new incognito tab, go to Google, and search for "firefly".
Expected results: The Wikipedia article "Firefly" should show up somewhere in the search results.
Actual results: The article is nowhere to be found.