---
title: "Webhook"
description: "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 "
canonical: https://aikkvnak.hu/en/glossary/webhook
language: en
publisher: AI KKV-nak
updated: 2026-09-19
---

# 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.

## 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.

## FAQ

**Is a webhook secure?**

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

Related: https://aikkvnak.hu/en/glossary/api, https://aikkvnak.hu/en/glossary/workflow-automation