fastify.dev Tech Stack
Live first-party scan of fastify.dev's tech stack. 8 technologies detected across 9 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection. Last change: May 3, 2026 - fastify.dev upgraded Docusaurus to 3.10.1. Scan timestamp: May 29, 2026.
Infrastructure Layer
Let's Encrypt
CDN
Fastly
Caching
Varnish
Documentation
Docusaurus
JavaScript frameworks
React
Miscellaneous
Webpack
PaaS
GitHub Pages
SSL/TLS certificate authority
Let's Encrypt
Security
HSTS
Static site generator
Docusaurus
Tech Stack Changes
Compare fastify.dev's Stack
How was this detected?
For fastify.dev, DetectZeStack identified 8 technologies: 7 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 fastify.dev compares
Symmetric diff between fastify.dev and similar sites detected on DetectZeStack.
vs www.cgiar.org — 3 shared, 4 unique here, 4 unique there
Only on fastify.dev: React, Webpack, Fastly, GitHub Pages
Only on www.cgiar.org: Drupal, Drupal Multisite, Google Tag Manager, Microsoft Power BI
vs jekyllrb.com — 4 shared, 4 unique here, 3 unique there
Only on fastify.dev: Webpack, Docusaurus, HSTS, React
Only on jekyllrb.com: Jekyll, Ruby, jsDelivr
vs jacobin.com — 1 shared, 4 unique here, 4 unique there
Only on fastify.dev: Webpack, Fastly, GitHub Pages, Let's Encrypt
Only on jacobin.com: Cloudflare, DoubleClick for Publishers (DFP), Google Cloud, Google Publisher Tag
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Get Free API Key Chrome ExtensionWhat technologies does fastify.dev use?
fastify.dev uses 8 technologies across 9 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 fastify.dev use?
fastify.dev uses Fastly for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.
What JavaScript framework does fastify.dev use?
fastify.dev uses React. JavaScript frameworks are detected through script analysis and HTML markup patterns.
How is fastify.dev's tech stack detected?
DetectZeStack identifies technologies on fastify.dev 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.