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Throttling (CPU & Network)

Throttling is a technique used in Lab Data tools (like Lighthouse) to simulate how a website would perform on slower devices or less reliable network connections. Network throttling simulates a slower internet speed (e.g., "fast 3G"), while CPU throttling simulates a less powerful processor. Using throttling during testing is crucial for developers to understand the real-world experience of average users, rather than just the ideal performance on their own high-end machines.

Fabian Krumbholz
April 8, 2026
1 min read
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