Faster Standards startup and page switching: preload static JavaScript dependencies together, minify cached CSS, prepare adjacent pages after loading, and start prefetching on touch/press. Data-saving preferences and native navigation remain supported.
All documentation, font, navigation, interaction and deployment guard checks passed. In five controlled runs with 150 ms response latency, median DOMContentLoaded improved from 510 to 352 ms, and prepared adjacent-page navigation from 190 to 32 ms. Real network timings vary.
Shared package source and Specimen’s pinned release are unchanged.