Fastly Investor Presentation Deck

Multiple Levers Drive Gross Margin Expansion Non-GAAP Gross Margin* 54.9% ● CY 2018 Levers include: 56.8% CY 2019 Ⓒ2021 Fastly, Inc. 60.9% CY 2020 * including D&A and SBC, please see appendix for reconciliation of Non-GAAP to GAAP metrics 57.6% Q4 19 63.7% Bandwidth continues to be largest variable contributor to Cost of Revenue People / Colocation expected to grow at slower rate than bandwidth / D&A as we reach global coverage Increased peering drives reduction in transit costs Q4 20 Inherent Network Efficiency Drives Margin Increase Customers Lower Costs & Higher Quality More Security Insight More Connectivity More Data/POPS We operate our business to optimize reach and scale Volume

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