Webhook endpoint tester

Before you point a live source at a tool, check that the tool actually answers. This sends one POST from our servers to your URL — the same way Relayo delivers — and shows you exactly what came back.

We send from our servers, so private and loopback addresses are refused — the same SSRF guard Relayo uses for real deliveries. Nothing about the request is stored.

What to look for

A healthy receiver answers 2xx within a couple of seconds. A 3xx means your tool is redirecting and most senders will not follow it. A 401/403 usually means the tool expects a signature or token you have not configured. A timeout means the tool is doing its work before answering — move that work to a queue, because Meta and most other senders will retry and eventually disable a slow endpoint.