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reactjs.org

https://reactjs.org

C75
Performance 63Accessibility 95SEO 92Best Practices 100

15 technologies detected · Last audited Apr 21, 2026

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Technology stack

Analytics

Google Analytics Google Tag Manager

Cdn

Vercel Edge

Frontend

Algolia Algolia DocSearch Cloudflare Google Search Console HSTS Open Graph RSS React Tailwind CSS Webpack

Hosting

Next.js Vercel

Frequently asked questions about reactjs.org

What technology does reactjs.org use?

reactjs.org is built with Algolia, Algolia DocSearch, Cloudflare, Google Search Console, and HSTS.

Is reactjs.org fast?

Somewhat — reactjs.org scores 63/100 on Lighthouse mobile performance, below the median audited site.

Is reactjs.org accessible?

Yes — reactjs.org scores 95/100 on Lighthouse accessibility, meeting most WCAG-aligned automated checks.

What CMS does reactjs.org use?

No CMS fingerprint was detected on reactjs.org — it may use a static site generator or a custom application.

Where is reactjs.org hosted?

reactjs.org is hosted on Next.js.

Does reactjs.org use HTTPS?

Yes — reactjs.org serves traffic over HTTPS.

1 audits

Apr 21, 2026 23:40 UTC Latest

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Worker: worker-madrid-spain-01

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Scores

Performance 63Accessibility 95Best Practices 100SEO 92PWA 0

Timing

LCP: 7.82 sFirst Contentful Paint: 1.96 sTTFB: 114 msTotal Time: 115 msCumulative Layout Shift: 0.000

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