We are pleased to announce a major upgrade to Rigor's Real Browser checks: our Real Browser Check V3 Platform (RBCv3). RBCv3 updates the underlying browser and infrastructure that Rigor uses to conduct synthetic browser tests. With RBCv3, Rigor now uses the latest version of Firefox ESR, improving the accuracy and consistency of our measures. In addition to more precise measurements, RBCv3 adds three new features. With RBCv3, Rigor now supports testing how websites load over HTTP/2. HTTP/2...

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