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Web Performance

Reference Material

  • Lighthouse Performance Scoring
    • Lighthouse provides a numeric score at the end, but what is that based on? These docs provide context.
    • Total Blocking Time (TBT) is currently (as of June 2023) weighted the highest at 30% of the score.


  • Unlighthouse
    • Uses Google Lighthouse to scan your whole site, but multithreads it based on your multicore CPU
    • Provides a static report at the end
    • Great for taking a look at every page to see if there are consistent or one-off problems
    • npx unlighthouse --site <your-site> to run immediately (from their Getting Started docs)