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Does Site Use Varnish
x402
Does Site Use Varnish is a paid API for AI agents from site.intel.rallylive.ca, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-29).
Checks whether a website uses the Varnish HTTP cache by fetching its homepage and matching Varnish fingerprints in HTML and response headers, returning a yes/no answer with evidence.
Price / call$0.01
Success—
StatusUnknown
How this service works
Does a website use Varnish? Fetches the page (homepage for a bare domain) and matches Varnish's fingerprints in the HTML and response headers, returning yes/no with the evidence snippet and the category (cache). 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 target website uses Varnish, along with an evidence snippet (matching HTML content or response header values that triggered the fingerprint match) and a technology category label of 'cache'.
Example use cases
Competitor stack research for sales
“I'm prospecting a list of SaaS companies — can you check if stripe.com uses Varnish? I want to know their caching setup to tailor my pitch.”
Pre-migration infrastructure audit
“We're about to migrate cloudflare.com to a new CDN — can you check whether it's currently running Varnish so we know what we're replacing?”
Technographic lead qualification
“We sell Varnish support and consulting — can you check if bbc.co.uk is using Varnish so I can decide if they're a good prospect?”
Technical details
Endpoint
GEThttps://site.intel.rallylive.ca/site/uses/varnish?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, single-technology check specifically for Varnish on a given domain — ideal for sales prospecting, competitive technographic research, or pre-migration audits where you want targeted evidence (header values and HTML snippets) rather than a full technology stack scan. It is priced per call at $0.01, making it cost-effective for spot checks or batch prospecting workflows where Varnish detection is the specific signal needed.
Side effects
- Domain is unreachable or returns an error, resulting in an inability to fetch the homepage
- Website blocks automated requests, potentially returning a misleading no-Varnish result
- Varnish is configured to hide its fingerprints, producing a false negative
- Input domain is malformed or missing, causing a validation error
- Rate limiting or network timeouts on the target site may cause incomplete analysis
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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