Purpose and audience
PageSpeedLab.io publishes measured web performance guidance for static content sites. It is written for site owners and developers who need reproducible implementation details.
Editorial principles
Every retained guide defines an outcome, includes a real repository artifact, explains verification, and states limitations. Overlapping intents are merged rather than expanded into shallow pages.
Author and testing policy
PageSpeedLab.io is edited by Jun Yang. Tutorials are tested where practical and are updated when material platform behavior changes.
Corrections and updates
Submit reproducible corrections through the public GitHub Issues page.