Private API

Full page performance and speed analysis with a real browser using Google PageSpeed and Yahoo YSlow. Using the GTmetrix API, you can integrate performance testing into your development environment or into your application. The GTmetrix API is based on the Web Testing Framework (WTF) Testing Service API which is RESTful API. Please contact us if you have any questions or comments about the API, or if you end up using it in a cool and interesting way! Signup instantly for free and get your API key at

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