Tech Detect — Pay-Per-Call Technology Stack Detection

Choose this endpoint when you need no-signup, pay-as-you-go technology fingerprinting for arbitrary domains without committing to a subscription. It is particularly useful for one-off competitive intelligence, pre-engagement security reconnaissance, or agent workflows that need to enrich domain metadata on demand. The optional `previous` field makes it well-suited for change-detection workflows where you want to diff the current stack against a known baseline.

• Domain unreachable or returns non-200 status — detection may be incomplete or empty
• Domain uses heavy bot protection (Cloudflare, etc.) — fingerprinting may be blocked or return partial results
• Invalid or malformed URL input — request rejected
• Payment failure via x402 — call not executed
• Low-confidence detections — some technologies may be listed with low confidence if evidence is sparse