www.costar.com Tech Stack
Live first-party scan of www.costar.com's tech stack. 10 technologies detected across 9 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection.
Infrastructure Layer
DigiCert
CDN
Akamai
Unpkg
JavaScript frameworks
Next.js
React
Miscellaneous
Webpack
Programming languages
Node.js
Reverse proxies
Envoy
SSL/TLS certificate authority
DigiCert
Security
Akamai Bot Manager
Tag managers
Google Tag Manager
Web frameworks
Next.js
Compare www.costar.com's Stack
How was this detected?
For www.costar.com, DetectZeStack identified 10 technologies: 9 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 www.costar.com compares
Symmetric diff between www.costar.com and similar sites detected on DetectZeStack.
vs www.au.bank.in — 4 shared, 4 unique here, 4 unique there
Only on www.costar.com: Next.js, React, Unpkg, Node.js
Only on www.au.bank.in: F5 Distributed Cloud Services, Adobe Dynamic Media Classic, HSTS, HTTP/3
vs www.blue-tomato.com — 2 shared, 4 unique here, 4 unique there
Only on www.costar.com: React, Akamai, Unpkg, Node.js
Only on www.blue-tomato.com: Varnish, Cloudflare, Cloudflare Browser Insights, HSTS
vs www.bloomandwild.de — 1 shared, 4 unique here, 4 unique there
Only on www.costar.com: React, Akamai, Unpkg, DigiCert
Only on www.bloomandwild.de: HSTS, PayPal, Amazon S3, Amazon Web Services
Need this data programmatically? Our API detects 7,300+ technologies at 1/50th the cost of BuiltWith. 100 free requests/month, no credit card.
Get Free API Key Chrome ExtensionWhat technologies does www.costar.com use?
www.costar.com uses 10 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 www.costar.com use?
www.costar.com uses Akamai, Unpkg for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.
What JavaScript framework does www.costar.com use?
www.costar.com uses Next.js, React. JavaScript frameworks are detected through script analysis and HTML markup patterns.
What web framework does www.costar.com use?
www.costar.com is built with Next.js. Framework detection relies on HTTP header fingerprints and HTML source analysis.
How is www.costar.com's tech stack detected?
DetectZeStack identifies technologies on www.costar.com 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.