You're right, the linked article says "cost of revenue" was $450m which I assumed was a non-technical term by a writer trying to pad the article out, but the S-

You're right, the linked article says "cost of revenue" was $450m which I assumed was a non-technical term by a writer trying to pad the article out, but the S-1 has it all broken out including that. With everything else it was over $900m. The S-1 has it defined as things like their infrastructure costs (bandwidth and such?).