Salts and Layers: Running Multiple AB Tests Simultaneously
How MD5-based traffic splitting with salts and a layer system lets you run dozens of orthogonal experiments without conflicts
Ab-Testing
Bootstrap Methods for AB Testing
Classical and Poisson bootstrap as non-parametric tools for normalizing skewed metrics and enabling valid T-tests on small samples
Bucketing: Variance Reduction and Faster AB Tests
How aggregating observations into buckets normalises skewed metrics, reduces variance, and cuts computation — with a probability proof for choosing the right bucket count