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codesandbox.io

https://codesandbox.io

C76
Performance 54Accessibility 95SEO 92Best Practices 77

15 technologies detected · Last audited Apr 7, 2026

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Technology stack

Backend

Stitches

Cdn

Cloudflare Google Cloud CDN

Frontend

Cloudflare Bot Management Goober Google Search Console Google Workspace HTTP/3 Open Graph Priority Hints React Webpack

Hosting

Google Cloud Next.js Next.js App Router

Frequently asked questions about codesandbox.io

What technology does codesandbox.io use?

codesandbox.io is built with Cloudflare Bot Management, Goober, Google Search Console, Google Workspace, and HTTP/3.

Is codesandbox.io fast?

Somewhat — codesandbox.io scores 54/100 on Lighthouse mobile performance, below the median audited site.

Is codesandbox.io accessible?

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

What CMS does codesandbox.io use?

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

Where is codesandbox.io hosted?

codesandbox.io is hosted on Google Cloud.

Does codesandbox.io use HTTPS?

Yes — codesandbox.io serves traffic over HTTPS.

1 audits

Apr 7, 2026 20:29 UTC Latest

/

Worker: worker-madrid-spain-01

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Scores

Performance 54Accessibility 95Best Practices 77SEO 92PWA 0

Timing

LCP: 20.85 sFirst Contentful Paint: 1.21 sTTFB: 155 msTotal Time: 160 msCumulative Layout Shift: 0.074

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