Prevents Google from showing a Site Links search box.
https://support.google.com/webmasters/answer/79812
Widgets · Site Search
Get access to data on 454,723 websites that are Google No Site Links Search Customers. We know of 191,232 live websites using Google No Site Links Search and an additional 263,491 sites that used Google No Site Links Search historically and 88,688 websites in the United States.
Get a list of 454,723 websites using Google No Site Links Search which includes location information, hosting data, contact details, 191,232 currently live websites and an additional 151,011 domains that redirect to sites in this list. 263,491 sites that used this technology previouslyand 88,688 websites in the United States currently using Google No Site Links Search.
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