Website health report
We don't have a stored audit for this domain yet. Run a full check now — 19 parallel tools; completion time depends on the target and upstream providers.
Run Full CheckPublish kit
https://checkfast.io/check/react.dev
[](https://checkfast.io/check/react.dev)
<a href="https://checkfast.io/check/react.dev"><img src="https://checkfast.io/badge/check/react.dev.svg" alt="CheckFast site health score for react.dev"></a>
CheckFast site health for react.dev: live. Full report: https://checkfast.io/check/react.dev
<iframe src="https://checkfast.io/embed/check/react.dev" width="360" height="112" frameborder="0" scrolling="no" title="CheckFast site health score for react.dev" style="border:0;overflow:hidden"></iframe>
curl -X POST https://checkfast.io/api/v1/public/check \
-H "Authorization: Bearer $CHECKFAST_API_KEY" \
-H "Content-Type: application/json" \
-d '{"domain":"react.dev"}'Send alerts to webhooks and pin public badge panels on team dashboards.
Use CheckFast as an external black-box signal beside uptime and latency.
Embed health badges in public status pages, docs, changelogs, and READMEs.
Share audit links in release notes and keep regression checks visible.