Company: FSLY
Filing Date: 2025-08-06
Form Type: 10-Q
Source: 0001517413-25-000218
Chunk: 356

Company: Fastly, Inc.
Filing Date: 2025-08-06
Form: 10-Q
Item: Part I, Item 8
Chunk 356
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”) as revenue from customers that have a billing address in the United States, and we define international revenue as revenue from customers that have a billing address outside of the United States. 

Cost of Revenue and Gross Margin

Cost of revenue consists primarily of fees paid to network providers for bandwidth and to third-party network data centers for housing servers, also known as colocation costs. Cost of revenue also includes employee costs for network operation, build-out and support and services delivery, network storage costs, cost of managed services and software-as-a-service, depreciation of network equipment used to deliver services, and amortization of network-related internal-use software. Our arrangements with network service providers require us to pay fees based on bandwidth use, in some cases subject to minimum commitments, which may be underutilized. Over the long term we expect cost of revenue to decrease as a percentage of revenue as we continue to drive efficiencies in our operations. However, our cost of revenue may fluctuate as a percentage of our revenue from period to period due to the timing and extent of these expenses.

Our gross margin has been and will continue to be affected by a number of factors, including utilization of our network, the timing of our investments in the expansion of our network, which can increase depreciation and colocation costs in advance of expected demand, our ability to manage our network service providers and cloud infrastructure-related fees, the timing of amortization of capitalized software development costs, changes in personnel costs to provide customer support and operate the network, and customer pricing. Over the long term we expect gross margin to increase as we continue to drive efficiencies in our operations and increase our revenue. However, our gross margin may fluctuate from period to period.

Research and Development

Research and development expenses consist primarily of personnel costs, including salaries, benefits, bonuses, and stock-based compensation. Research and development expenses also include cloud infrastructure fees for development and testing, and an allocation of our general overhead expenses. We capitalize the portion of our software development costs that meet the criteria for capitalization.

We continue to focus our research and development efforts on adding new features and products including new use cases, improving the efficiency and performance of our network, and increasing the functionality of our existing products. Over the long term we expect our research and development expenses to decrease as a percentage of our revenue. However, our research and development expenses may fluctuate as a percentage of our revenue from period to period due to the timing and extent of these expenses.

Sales and Marketing

Sales and marketing expenses consist primarily of personnel costs, including commissions for our