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does-site-use-posthog
x402
does-site-use-posthog is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-14).
Checks whether a given website uses PostHog analytics by scanning its homepage HTML and response headers for PostHog fingerprints, returning yes/no with evidence.
Price / call$0.01
Success—
StatusUnknown
How this service works
Does a website use PostHog? Fetches the page (homepage for a bare domain) and matches PostHog's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (analytics). Technographics for sales, competitor research and migration planning, one technology per call. $0.01 per check.
Output
Returns a yes/no answer indicating whether PostHog is detected on the site, along with an evidence snippet (matching HTML or header content that triggered the fingerprint match) and a technology category label ('analytics').
Example use cases
Competitor analytics stack research
“Does Vercel's website use PostHog? I'm doing a competitive analysis of which dev-tools companies have adopted it.”
Sales prospecting for PostHog alternatives
“Check whether acme-corp.com has PostHog installed — I'm reaching out to companies already using PostHog analytics to offer them a migration to our platform.”
Pre-migration audit of current stack
“Before we start planning our migration away from PostHog, can you confirm that our site startupxyz.com actually still has PostHog running on it?”
Technical details
Endpoint
GEThttps://site.intel.rallylive.ca/site/uses/posthog?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a lightweight, single-domain check specifically for PostHog technology presence — ideal for sales prospecting, competitive technographic research, or verifying PostHog deployment before or after a migration. Prefer the bulk sibling endpoint if checking more than one domain at a time.
Side effects
- Domain is unreachable or returns non-200 status — endpoint may return no-match or an error
- Website uses server-side rendering or heavy JS obfuscation that hides PostHog initialization from static HTML scan
- PostHog loaded via a custom proxy or renamed bundle may evade fingerprint matching
- Rate limits or bot protection on the target site may block the fetch
- Bare domain redirects to a subdomain that isn't scanned
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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