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On the recordRead 12 Oct 202621 facts
Speedometer 3.0
On the record
- Accuracy guidance
- The instructions recommend using a clean browser profile, closing other tabs and windows, and keeping the benchmark page focused during a run.browserbench.org · read 12 Oct 2026
- Browser access
- The project says the benchmark should run in every modern browser by visiting a normal web page.github.com · read 12 Oct 2026
- Current version notice
- The Speedometer 3.0 page recommends running Speedometer 3.1, which it says supersedes this benchmark.browserbench.org · read 11 Oct 2026
- Feedback
- The project directs users with feedback or questions to file issues on GitHub.webkit.org · read 12 Oct 2026
- Frameworks and libraries
- The listed workloads include React, Angular, Vue, Svelte, Preact, Lit, Backbone, jQuery, and Web Components.browserbench.org · read 11 Oct 2026
- Method limitation
- Speedometer does not attempt to measure concurrent asynchronous work such as work performed in Web Workers.browserbench.org · read 12 Oct 2026
- Methodology limit
- Speedometer does not attempt to measure concurrent asynchronous work such as work in Web Workers.browserbench.org · read 11 Oct 2026
- Open source
- Speedometer is developed as an open source project under a multistakeholder governance model involving three browser engine projects.browserbench.org · read 12 Oct 2026
- Other workloads
- Workloads include editing rich text, rendering charts, and reading a news site.browserbench.org · read 12 Oct 2026
- Purpose
- Speedometer 3.0 measures web application responsiveness by timing simulated user interactions across workloads.browserbench.org · read 12 Oct 2026
- Result export formats
- JSON; Classic JSON; CSVbrowserbench.org · read 22 Sep 2026
- Results
- The page provides detailed results and options to copy or download JSON and CSV results.browserbench.org · read 12 Oct 2026
- Technologies tested
- The listed workloads include React, Angular, Vue, Svelte, Lit, CodeMirror, TipTap, Chart.js, and Observable Plot.browserbench.org · read 12 Oct 2026
- Test conditions
- The instructions recommend a clean browser profile because extensions and non-default browser settings can have a large impact on scores.browserbench.org · read 11 Oct 2026
- Todo workload
- The todo list workload measures the time to add, complete, and remove 100 items.browserbench.org · read 12 Oct 2026
- Todo workloads
- Its todo workloads time adding, completing, and removing 100 items across implementations using different techniques and frameworks.browserbench.org · read 11 Oct 2026
- Usage limit
- The maker says Speedometer should not be used to compare the performance of different JavaScript frameworks.browserbench.org · read 11 Oct 2026
- Use limitation
- The project says Speedometer should not be used to compare the performance of different JavaScript frameworks.browserbench.org · read 12 Oct 2026
