openai.com
16 technologies detected across 9 categories. Scanned 49 minutes ago.
What the stack tells you
OpenAI runs the canonical Next.js stack: Next on Vercel, Tailwind for styling, Webpack and Vite in the build pipeline, Cloudflare sitting in front for edge and bot defense. Picking Vercel is not a neutral hosting decision when your framework is Next.js and Vercel is the company that ships Next.js. It's the path of least resistance for a team that wants framework upgrades, ISR, image optimization, and edge functions to work without a platform team babysitting them.
The Cloudflare layer in front of Vercel is the more interesting choice. OpenAI is the single largest target on the internet for AI scrapers, credential-stuffing bots, and competitive data harvesting, and Cloudflare Bot Management is the off-the-shelf answer to that problem. Running Cloudflare in front of Vercel adds a hop and complicates cache invalidation, and they took that tradeoff anyway because the abuse surface is bigger than the latency surface.
What's missing tells you as much as what's there. There is no Google Analytics, no Segment, no Amplitude, no Hotjar, no consent-management platform stitched into the page. The only third-party tag detected is LinkedIn Insight, which is paid-ads attribution for B2B campaigns. A company with their traffic could justify any analytics stack on earth; they ship close to none. That's either a privacy posture, a "we already know what we need to know" posture, or both, and it's notable in a vendor category where 15 trackers per page is the norm.
The signal
OpenAI's marketing site is built like a product team built it, hardened against abuse, and stripped of analytics most B2B sites consider table stakes.
Miscellaneous
- HTTP/3
HTTP/3 is the third major version of the Hypertext Transfer Protocol used to exchange information on the World Wide Web.
- Open Graph
Open Graph is a protocol that is used to integrate any web page into the social graph.
JavaScript frameworks
- Next.js
Next.js is a React framework for developing single page Javascript applications.
- React
React is an open-source JavaScript library for building user interfaces or UI components.
- Svelte
Svelte is a free and open-source front end compiler created by Rich Harris and maintained by the Svelte core team members.
Security
- Cloudflare Bot Management
Cloudflare bot management solution identifies and mitigates automated traffic to protect websites from bad bots.
- HSTS
HTTP Strict Transport Security (HSTS) informs browsers that the site should only be accessed using HTTPS.
UI frameworks
- SvelteKit
SvelteKit is the official Svelte framework for building web applications with a flexible filesystem-based routing.
- Tailwind CSS
Tailwind is a utility-first CSS framework for rapidly building custom user interfaces.
Analytics
- Linkedin Insight Tag
LinkedIn Insight Tag is a lightweight JavaScript tag that powers conversion tracking, website audiences, and website demographics.
CDN
- Cloudflare
Cloudflare is a web-infrastructure and website-security company, providing content-delivery-network services, DDoS mitigation, Internet security, and distributed domain-name-server services.
JavaScript libraries
- Preact
Preact is a JavaScript library that describes itself as a fast 3kB alternative to React with the same ES6 API.
PaaS
- Vercelfreemium · low · recurring · poa
Vercel is a cloud platform for static frontends and serverless functions.
Performance
- Priority Hints
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
How we detected this
We analyze the public homepage of openai.com against a library of common third-party tools and frameworks - SaaS vendors, analytics, CDNs, payment processors, frontend frameworks, and dev infrastructure.
Results reflect what's observable on the public homepage at scan time. Tools that load only after sign-in or specific user interactions may not appear.
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