Glossary

Webhook

HU Webhook

Definition

What is Webhook?

A webhook is a message one system sends to another the instant something happens, such as 'a new order was placed' or 'a form was submitted'. It is the trigger that starts most real-time automations. Without webhooks, an automation has to keep asking 'anything new?', which is slower and wasteful.

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Webhook or polling

Use a webhook when speed matters, such as replying to a lead within minutes. Use scheduled polling when the source has no webhooks or when a daily batch is fine, such as a nightly report.

Frequently asked questions

Is a webhook secure?

When signed and verified, yes. We validate the signature on every incoming webhook and reject anything unsigned.

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Further reading

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