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Does Site Use Prebid.js
x402
Does Site Use Prebid.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 2026-10-15).
Detects whether a given website uses Prebid.js by fingerprinting its homepage HTML and response headers, returning a yes/no result with evidence snippet.
Price / call$0.01
Success—
StatusUnknown
How this service works
Does a website use Prebid.js? Fetches the page (homepage for a bare domain) and matches Prebid.js's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (advertising). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.
Output
Returns a yes/no boolean indicating whether Prebid.js was detected on the website, along with the specific evidence snippet (e.g. matching HTML pattern or response header value) that triggered the match, and the technology category label 'advertising'.
Example use cases
Competitor ad-stack research
“I'm doing competitive research on programmatic advertising setups — can you check whether nytimes.com uses Prebid.js and show me the evidence you find?”
Sales prospecting for ad-tech vendor
“I'm reaching out to publishers about our header bidding solution. Can you check if washingtonpost.com is currently using Prebid.js so I know whether to pitch migration or a new install?”
Migration planning audit
“We're helping a client migrate their ad stack. Can you check if sportsillustrated.com uses Prebid.js and tell me what fingerprints you found in the page?”
Technical details
Endpoint
GEThttps://site.intel.rallylive.ca/site/uses/prebid?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, low-cost ($0.01) single-domain check for Prebid.js specifically. Prefer this over generic web scraping when you want a structured yes/no technographic signal with evidence, especially for sales prospecting, competitive intelligence, or ad-stack auditing workflows. Use the sibling bulk endpoint if checking more than a few domains at once.
Side effects
- Domain is unreachable or returns non-200 status — check may return no result or error
- Website uses bot detection/WAF that blocks the fetch, resulting in false negative
- Prebid.js loaded asynchronously after initial HTML render may not be detected
- Highly customized or obfuscated Prebid.js builds may evade fingerprint matching
- Invalid or malformed domain input causes request failure
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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