There is a bug in Google that is wiping out search feature that allows searchers to search within a specific site from the Google search result snippets.  The feature launched three years ago, and it is officially called a Sitelinks Searchbox.  In the Searchbox, Google shows a search box directly within a search result snippet, allowing the searcher to restrict their search results to pages within the site listed.

The following screen shots by  shows what it looks like on a search for “YouTube” when the feature launched.

The Sitelink Searchbox, at least temporarily is no longer showing.  RankRanger caught the feature dropping out of Google globally a few days ago.

At the time of this writing, Google is working on it with no estimated fix timeline.

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