Webhook Verification
Definition
Webhook verification checks the origin, integrity, and freshness of incoming event notifications.
The verification of authenticity, integrity, and freshness of a webhook request before processing it.
Simply explained
Before the system responds to a message, it checks: Does it come from the correct sender, is it unchanged, and is it still current?
Why it matters in practice
The term contributes to secure, maintainable, and high-performance web applications as well as resilient technical decisions.
Example from business
A receiver verifies the signature over the unchanged body, time window, and event ID.
Limits and pitfalls
- TLS alone does not authenticate the sender at the application level; body modification, key rotation, and replay are critical.
Origin & history
HMAC signatures with timestamps have become a common protection measure for API webhooks.
Use in mid-sized companies
- Possible example: A receiver verifies the signature over the unchanged body, time window, and event ID.
Frequently asked questions
What does webhook verification mean?
The verification of authenticity, integrity, and freshness of a webhook request before processing it. What should you watch out for? TLS alone does not authenticate the sender at the application level; body modification, key rotation, and replay are critical.
Sources
- Validating webhook deliveries · GitHub, Validating webhook deliveries
Source checked on 10.10.2026. Editorial usage examples are hypothetical; no evidence of real customer results.
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