Webhook

What is a Webhook?

A webhook is an automated callback mechanism that sends real-time data from one application to another when a specified event occurs. Rather than continuously polling a system for updates, webhooks push notifications to a designated URL whenever a trigger event happens (such as a contact form submission, content publication, or order placement). 

Webhooks are foundational to modern marketing automation, CMS integrations, and event-driven workflows, enabling systems to communicate asynchronously and execute actions without manual intervention. In digital experience platforms and marketing technology, webhooks connect tools, automate processes, and ensure data consistency across the martech stack.

What are the key features or benefits of webhooks? 

• Real-time automation – Trigger actions instantly when events occur, without polling delays.
• Reduced system load – Push-based architecture eliminates unnecessary polling requests.
• Seamless integrations – Connect with email platforms, analytics tools, CRMs, and custom systems effortlessly.
• Event-driven workflows – Enable complex orchestration based on specific conditions or user behaviors.
• Enhanced data accuracy – Ensure data is synchronized across systems immediately.
• Scalability – Support high-volume event processing without overwhelming target systems.

How do webhooks work, and why do they matter?

When an event occurs in a webhook-enabled system (like Kentico), the system collects the event details, packages them as JSON or XML data, and sends an HTTP POST request to a pre-configured URL (the webhook endpoint). The receiving system processes the data, executes the configured action, and returns a response. This asynchronous, event-driven model means systems stay synchronized in real time without constant back-and-forth communication.

This matters because it eliminates manual processes and data silos. For example, when a contact submits a form in Kentico, a webhook can automatically create a record in your CRM, trigger a welcome email sequence, and log the interaction in your analytics platform, all within milliseconds. Without webhooks, teams would manually export data, import it elsewhere, and risk inconsistencies. Webhooks are essential for building connected, automated digital experiences at scale.

How does Xperience by Kentico support webhooks?

Xperience by Kentico includes native webhook capabilities that enable teams to:

• Trigger automated workflows when content is published, updated, or deleted.
• Send contact or form submission data to third-party systems in real time.
• Sync customer journey events with email marketing platforms, CRMs, and analytics tools.
• Build custom integrations without API polling overhead.
• Monitor webhook performance and troubleshoot failed deliveries through detailed logging.
• Implement retry logic and throttling to ensure reliable event delivery.

These webhooks enable marketers and developers to build connected workflows that keep data consistent across the entire martech stack, reducing manual coordination and enabling rapid automation.

How do companies benefit from webhooks?

Organizations implementing Kentico webhooks streamline operations and accelerate time-to-market through reduced manual work.

For example, a B2B software company uses Kentico webhooks to automatically sync every marketing asset to their digital asset management system and trigger approval workflows for compliance review.

 A retail brand implements webhooks to update product information across their website, mobile app, and email campaigns the instant inventory changes, preventing overselling and keeping customers informed.

How do webhooks fit into a digital experience strategy?

Webhooks are the nervous system of a connected digital experience strategy, enabling real-time data flow between tools and automating routine tasks. They allow marketing, content, and IT teams to:

• Eliminate data silos by keeping systems synchronized automatically.
• Reduce manual coordination and handoffs.
• Respond to customer actions and market changes instantly.
• Scale operations without proportional increases in headcount or complexity.
• Build sophisticated, event-triggered customer journeys.

In Kentico, webhooks combine with content management and personalization capabilities to create intelligent, responsive digital experiences.

What's the difference between webhooks and APIs?

• APIs (Application Programming Interfaces) are request-response mechanisms where one system asks another for information or action. The requesting system must actively call the API, typically on a schedule or in response to user action.
• Webhooks are event-driven callbacks where one system automatically notifies another when something happens. The receiving system passively listens for events without making requests.

In practice, APIs are pull-based, while webhooks are push-based. Kentico supports both, enabling teams to choose the integration pattern that best fits their workflow: use APIs when you need to query data on demand, and webhooks for real-time event notification and automation.