BuiltWith API alternative
A lightweight alternative when you do not need a bulk technographic API
Use WhosBuilt for low-volume verified website research where evidence, confidence, hosting, builder, and contact clues matter more than bulk API throughput.
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What this checks
- One-domain evidence reports for stack, hosting, DNS, headers, SSL, and contact clues
- Useful for manual research queues, rebuild prospecting, and technical due diligence
- Not a bulk API or enterprise enrichment feed replacement yet
How I treat the evidence
WhosBuilt is honest about scope: it is strongest when a person or small team needs to verify a domain, understand the evidence, and decide the next action.
For bulk enrichment, use a dedicated API. For a short list where each domain matters, run evidence reports first.
Does WhosBuilt have a bulk API?
No public bulk technographic API is positioned here. The current product is better for one-domain and small-batch research.
Why use it instead of an API export?
Because the report keeps the evidence visible: raw clues, confidence, hosting context, creator hints, and contact paths for a domain you actually care about.