Akamai/SOASTA (2017, ~10B visits): 100ms delay = -2.4% desktop / -7.1% smartphone conversions; 2s delay = -36.5% desktop / -26.2% mobile

Claim: Akamai's 2017 State of Online Retail Performance analyzed ~10 billion user visits across top online retailers.

• 100ms delay → -2.4% desktop, -7.1% smartphone, -3.8% tablet conversions.
• 2-second delay → -36.5% desktop, -26.2% mobile, -25.1% tablet conversions.

Counterintuitive finding: desktop users were more conversion-sensitive, but mobile users were more bounce-sensitive — mobile users leave faster; desktop completers abandon further down the funnel.

Source: Akamai State of Online Retail Performance (ir.akamai.com / akamai.com newsroom).

Confidence: High for the measurement; dated for application — cite as a historical retail e-commerce benchmark from 2017, not a universal current law. See Speed/conversion stats commonly cited but NOT supported by primary evidence in 2026 — Candid will not quote these for the "1-second delay = 7% conversion loss" myth that derives from this.