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SRM Checker
Detect sample ratio mismatch issues fast
What is SRM? Sample Ratio Mismatch occurs when the actual
traffic split differs significantly from the expected split. This can indicate problems with your
experiment setup that may invalidate results.
Quick Start: Try an Example
Quick Paste
Paste variant data from your tool or spreadsheet
Manual Input
Or enter variant counts directly
Expected split
50% / 50%
Enter visitor counts for at least two variants to check for SRM.
These tools are built with care, but we can't guarantee accuracy for every scenario. If something seems off, please reach out at [email protected] — we'd love to hear from you. We hope these tools help you run better experiments!