This page uses the viewport meta tag which means the content may be optimized for mobile content.
https://developers.google.com/speed/docs/insights/ConfigureViewport
Mobile
Get access to data on 151,751,818 websites that are Viewport Meta Customers. We know of 2,000,002 live websites using Viewport Meta and an additional 149,751,816 sites that used Viewport Meta historically and 1,345,454 websites in the United States.
Get a list of 151,751,818 websites using Viewport Meta which includes location information, hosting data, contact details, 2,000,002 currently live websites and an additional 5,273,023 domains that redirect to sites in this list. 149,751,816 sites that used this technology previously and 1,345,454 websites in the United States currently using Viewport Meta.