{"preview":true,"chain":[{"url":"https://example.com/","statusCode":200,"redirectType":null,"location":null,"latencyMs":82,"headers":{"server":"cloudflare"}}],"finalUrl":"https://example.com/","finalStatus":200,"chainLength":1,"totalLatencyMs":82,"hasLoop":false,"canonical":null,"issues":[],"note":"Preview limited to 5 hops, no canonical extraction. Use /check with x402 payment for full analysis."}