Quantcast Top 10k1,933 of 10,000
Quantcast Top 100k13,769 of 100,000
Quantcast Top Million95,127 of 809,093
BuiltWith Top Sites260,517 of 1,814,305
Premium Sites797,781 of 10,720,340
Entire Internet4,299,863 of 307,975,418
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We know of 4,299,863 live websites using Facebook SDK in our records.
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