rspec.info Tech Stack
Live first-party scan of rspec.info's tech stack. 5 technologies detected across 5 categories, via Wappalyzer fingerprinting + DNS CNAME + TLS certificate inspection. Scan timestamp: Jul 26, 2026.
Infrastructure Layer
Let's Encrypt
CDN
Fastly
Caching
Varnish
PaaS
GitHub Pages
SSL/TLS certificate authority
Let's Encrypt
Video players
Asciinema
Compare rspec.info's Stack
How was this detected?
For rspec.info, 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 rspec.info compares
Symmetric diff between rspec.info and similar sites detected on DetectZeStack.
vs hutechsolutions.com — 1 shared, 4 unique here, 4 unique there
Only on rspec.info: Asciinema, Fastly, GitHub Pages, Varnish
Only on hutechsolutions.com: Litespeed Cache, MySQL, WordPress, YouTube
vs www.buerostuhl24.com — 1 shared, 4 unique here, 4 unique there
Only on rspec.info: Asciinema, Fastly, GitHub Pages, Varnish
Only on www.buerostuhl24.com: HTTP/3, LangShop, Shopify, Cloudflare
vs bitwarden.com — 1 shared, 4 unique here, 4 unique there
Only on rspec.info: Asciinema, Fastly, GitHub Pages, Varnish
Only on bitwarden.com: Ketch, Linkedin Ads, Algolia, Amazon S3
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Get Free API Key Chrome ExtensionWhat technologies does rspec.info use?
rspec.info uses 5 technologies across 5 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 rspec.info use?
rspec.info uses Fastly for content delivery. CDN providers are identified through DNS CNAME records and HTTP response headers.
How is rspec.info's tech stack detected?
DetectZeStack identifies technologies on rspec.info 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.