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Does Site Use Three.js
x402
Does Site Use Three.js is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).
Checks whether a given website uses the Three.js JavaScript library by fetching its homepage and matching Three.js fingerprints in the HTML and response headers.
Price / call$0.01
Success—
StatusUnknown
How this service works
Does a website use Three.js? Fetches the page (homepage for a bare domain) and matches Three.js's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (library). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.
Output
Returns a yes/no answer indicating whether the site uses Three.js, along with an evidence snippet (HTML or header content that matched the fingerprint) and the technology category label ('library').
Example use cases
Competitor tech stack research
“I'm researching our competitors — can you check if designstudio.com uses Three.js on their site? I want to know if they're doing WebGL 3D work.”
Sales prospecting for Three.js alternatives
“I'm building a list of companies using Three.js so I can pitch them our WebGL optimization tool — can you check if interactiveagency.co uses Three.js?”
Migration planning audit
“We're helping a client migrate away from Three.js — can you confirm whether their site at clientbrand.io actually uses Three.js so we know the scope of the project?”
Technical details
Endpoint
GEThttps://site.intel.rallylive.ca/site/uses/three-js?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a quick, low-cost ($0.01) single-technology check specifically for Three.js on a given domain. It is purpose-built for Three.js fingerprinting and is ideal for sales prospecting, competitor research, or migration audits where you need targeted yes/no confirmation with evidence rather than a full technology stack scan.
Side effects
- Site is unreachable or times out — no detection result returned
- Site uses obfuscated or bundled Three.js that evades fingerprinting — false negative
- Domain input is malformed — request fails with input validation error
- Site blocks automated fetches (e.g. bot detection) — may return inconclusive result
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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