Quantcast Top 10k3,760 of 10,000
Quantcast Top 100k24,944 of 100,000
BuiltWith Top Million207,857 of 949,267
Entire Internet4,231,640 of 362,387,012
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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 4,231,640 live websites using Facebook SDK in our records.
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