codesandbox.io Tech Stack
Live first-party scan of codesandbox.io's tech stack. 11 technologies detected across 10 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection. Last change: Jun 16, 2026 - codesandbox.io added Let's Encrypt. Scan timestamp: Jul 12, 2026.
Infrastructure Layer
Let's Encrypt
Analytics
Cloudflare Browser Insights
CDN
Cloudflare
Google Cloud CDN
IaaS
Google Cloud
JavaScript frameworks
Next.js
React
Miscellaneous
HTTP/3
Webpack
Programming languages
Node.js
RUM
Cloudflare Browser Insights
SSL/TLS certificate authority
Let's Encrypt
Security
Cloudflare Bot Management
Web frameworks
Next.js
Tech Stack Changes
Compare codesandbox.io's Stack
How was this detected?
For codesandbox.io, DetectZeStack identified 11 technologies: 10 via HTTP fingerprinting and 1 via TLS handshake.
Detection runs four independent layers in parallel: HTTP response headers, TLS handshake metadata, certificate issuer inspection, and DNS record lookups. The breakdown above shows which layers fired for this specific domain — some sites carry most of their fingerprint in HTTP, others rely heavily on infrastructure (DNS/TLS).
How codesandbox.io compares
Symmetric diff between codesandbox.io and similar sites detected on DetectZeStack.
vs www.prontosaude.com.br — 4 shared, 4 unique here, 4 unique there
Only on codesandbox.io: Node.js, Cloudflare, Cloudflare Browser Insights, Cloudflare Bot Management
Only on www.prontosaude.com.br: Google Analytics, Google Tag Manager, HSTS, Wix
vs www.premier.ug — 3 shared, 4 unique here, 2 unique there
Only on codesandbox.io: Webpack, Next.js, Node.js, Cloudflare
Only on www.premier.ug: Google Cloud Load Balancing, Google Cloud Trace
vs jwbasketball.com — 6 shared, 4 unique here, 4 unique there
Only on codesandbox.io: Webpack, Next.js, React, HTTP/3
Only on jwbasketball.com: Vue.js, libphonenumber, HighLevel, Nuxt.js
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codesandbox.io uses 11 technologies across 10 categories. The full breakdown is listed above, organized by function. Each technology was identified through analysis of HTTP headers, DNS records, TLS certificates, and HTML content.
What CDN does codesandbox.io use?
codesandbox.io uses Cloudflare, Google Cloud CDN for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.
What JavaScript framework does codesandbox.io use?
codesandbox.io uses Next.js, React. JavaScript frameworks are detected through script analysis and HTML markup patterns.
What web framework does codesandbox.io use?
codesandbox.io is built with Next.js. Framework detection relies on HTTP header fingerprints and HTML source analysis.
What analytics tools does codesandbox.io use?
codesandbox.io uses Cloudflare Browser Insights for web analytics. These services are detected through JavaScript includes and tracking pixel patterns.
How is codesandbox.io's tech stack detected?
DetectZeStack identifies technologies on codesandbox.io through multiple detection methods: HTTP response header analysis, HTML and JavaScript content scanning, DNS record lookups, and TLS certificate inspection. This multi-layered approach catches technologies that single-method tools miss.