Quantcast Top 10k2,199 of 10,000
Quantcast Top 100k15,667 of 100,000
Quantcast Top Million107,483 of 878,372
BuiltWith Top Sites272,591 of 1,824,705
Premium Sites870,665 of 10,736,091
Entire Internet4,721,350 of 307,985,818
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This chart shows the amount of websites within the top 10k, 100k, and 1 million sites groups that are categorized as being in the specific vertical.
We know of 4,721,350 live websites using Facebook SDK in our records.
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