astro.build Tech Stack
Live first-party scan of astro.build's tech stack. 5 technologies detected across 7 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection. Last change: May 17, 2026 - astro.build upgraded Astro to 6.3.1. Scan timestamp: May 28, 2026.
Infrastructure Layer
Let's Encrypt
Analytics
Fathom
CDN
Netlify
JavaScript frameworks
Astro
PaaS
Netlify
SSL/TLS certificate authority
Let's Encrypt
Security
HSTS
Static site generator
Astro
Tech Stack Changes
Compare astro.build's Stack
How was this detected?
For astro.build, DetectZeStack identified 5 technologies: 4 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 astro.build compares
Symmetric diff between astro.build and similar sites detected on DetectZeStack.
vs stripe.com — 1 shared, 4 unique here, 4 unique there
Only on astro.build: Fathom, Let's Encrypt, Netlify, Astro
Only on stripe.com: Amazon S3, Amazon Web Services, DigiCert, Nginx
vs www.cloudcraft.co — 1 shared, 4 unique here, 4 unique there
Only on astro.build: Fathom, Let's Encrypt, Netlify, Astro
Only on www.cloudcraft.co: jQuery, Google Cloud, Google Font API, HTTP/3
vs www.texaswater.org — 2 shared, 3 unique here, 4 unique there
Only on astro.build: Fathom, Netlify, Astro
Only on www.texaswater.org: Adobe Fonts, Google Analytics, Lightbox, jQuery
Need this data programmatically? Our API detects 7,300+ technologies at 1/50th the cost of BuiltWith.
Get Free API Key Chrome ExtensionWhat technologies does astro.build use?
astro.build uses 5 technologies across 7 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 astro.build use?
astro.build uses Netlify for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.
What JavaScript framework does astro.build use?
astro.build uses Astro. JavaScript frameworks are detected through script analysis and HTML markup patterns.
What analytics tools does astro.build use?
astro.build uses Fathom for web analytics. These services are detected through JavaScript includes and tracking pixel patterns.
How is astro.build's tech stack detected?
DetectZeStack identifies technologies on astro.build 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.