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SiteSignal Public HTTP Redirect Chain Snapshot
x402
SiteSignal Public HTTP Redirect Chain Snapshot is a paid API for AI agents from trinity-throw-thursday-gravity.trycloudflare.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-15).
Traces up to three HTTP redirects for a given URL and reports status codes, cross-origin hops, HTTPS downgrade warnings, and final response evidence.
Price / call$0.02
Success—
StatusUnknown
How this service works
Trace up to three public HTTP redirects and report status semantics, cross-origin hops, HTTPS downgrades, and final-response evidence.
Output
Returns a structured breakdown of up to three redirect hops including HTTP status codes at each step, whether any hop crosses to a different origin (domain), whether any hop downgrades from HTTPS to HTTP, and the final response URL and status as evidence of the chain's endpoint.
Example use cases
Detecting HTTPS downgrade in redirects
“Check if https://promo.mystore.com redirects properly — I want to know if it ever drops down to plain HTTP at any point in the chain and where it ultimately lands.”
SEO redirect audit for migrated pages
“I moved a bunch of pages to a new domain. Can you trace the redirect chain for https://oldsite.com/products/widget and confirm it lands on the right HTTPS URL with no extra hops?”
Verifying third-party link destination
“Before I publish this article, can you follow https://bit.ly/3xK9mRp and tell me all the redirect hops, their status codes, and the final URL it resolves to?”
Technical details
Endpoint
GEThttps://trinity-throw-thursday-gravity.trycloudflare.com/x402/redirect-chainWhen to prefer
Use this endpoint when you need to programmatically audit redirect behavior for a single public URL — especially to detect HTTPS downgrades, cross-origin hops, or unexpected redirect destinations. It is ideal for SEO audits, link verification before publishing, and security checks on third-party URLs. Prefer this over a full crawler when you only need redirect-chain semantics (not full page content) and want lightweight, pay-per-call pricing at $0.02 USDC.
Side effects
- URL is unreachable or DNS fails — returns error indicating connectivity issue
- URL does not redirect at all — returns single-hop result with no redirect chain
- More than three redirects present — only the first three hops are traced and reported
- Private/internal URLs or localhost addresses rejected — endpoint only handles public HTTP(S) URLs
- Malformed URL input — schema validation error returned before any request is made
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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