opensea.io Tech Stack
Live first-party scan of opensea.io's tech stack. 12 technologies detected across 8 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection. Last change: May 25, 2026 - opensea.io added Let's Encrypt. Scan timestamp: May 25, 2026.
Infrastructure Layer
Let's Encrypt
CDN
Amazon S3
Cloudflare
JavaScript frameworks
Next.js
React
Miscellaneous
HTTP/3
Webpack
PaaS
Amazon Web Services
Vercel
Programming languages
Node.js
SSL/TLS certificate authority
Let's Encrypt
Security
Cloudflare Bot Management
HSTS
Web frameworks
Next.js
Tech Stack Changes
Compare opensea.io's Stack
How was this detected?
For opensea.io, DetectZeStack identified 12 technologies: 11 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 opensea.io compares
Symmetric diff between opensea.io and similar sites detected on DetectZeStack.
vs www.texaswater.org — 2 shared, 4 unique here, 4 unique there
Only on opensea.io: HTTP/3, Webpack, Cloudflare, Vercel
Only on www.texaswater.org: Lightbox, Squarespace, Typekit, Adobe Fonts
vs jordancraig.com — 5 shared, 4 unique here, 4 unique there
Only on opensea.io: Webpack, Vercel, React, Node.js
Only on jordancraig.com: Intelligems, Klaviyo, Glider.js, Google Tag Manager
vs sesamecare.com — 4 shared, 4 unique here, 3 unique there
Only on opensea.io: HTTP/3, Webpack, Vercel, Cloudflare Bot Management
Only on sesamecare.com: Cloudflare Browser Insights, Contentful, Envoy
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opensea.io uses 12 technologies across 8 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 opensea.io use?
opensea.io uses Amazon S3, Cloudflare for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.
What JavaScript framework does opensea.io use?
opensea.io uses Next.js, React. JavaScript frameworks are detected through script analysis and HTML markup patterns.
What web framework does opensea.io use?
opensea.io is built with Next.js. Framework detection relies on HTTP header fingerprints and HTML source analysis.
How is opensea.io's tech stack detected?
DetectZeStack identifies technologies on opensea.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.