user agent
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How to Customize Your User Agent in GTmetrix
Need to use a Custom User-Agent? We show you how to make use of our enhanced User Agent Override feature.
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How to Simulate Devices With GTmetrix
GTmetrix allows you to test your page’s performance on mobile by modifying the screen resolution, user agent, and device pixel ratio to each device’s technical specifications.
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Anonymizing Your User-Agent
We explain why you may need to anonymize our default User-Agent and how to do it.
