Webhook Log
Pronunciation: WEB-hook lawg
Also known as: Webhook Diagnostic Log, Callback Log
Definition
A Webhook Log is a diagnostic record of webhook requests, delivery attempts, responses, processing steps, and errors. It helps operators trace failures and understand what happened across sender and receiver systems. It may be less authoritative than a webhook event log because diagnostic logs can be sampled, rotated, redacted, or distributed across services. In production, teams should define ownership and apply structured fields, event and trace IDs, timestamps, response codes, retry numbers, secure redaction, centralized retention, and searchable indexing.
Overview
How it works and where it fits
A Webhook Log is a diagnostic record of webhook requests, delivery attempts, responses, processing steps, and errors. It may be less authoritative than a webhook event log because diagnostic logs can be sampled, rotated, redacted, or distributed across services.
The main risks include missing correlation, secret or personal-data exposure, inconsistent clocks, excessive sampling, and logs that omit failed parsing. It helps operators trace failures and understand what happened across sender and receiver systems. Replay of Webhook Log should preserve original identifiers and timestamps so historical processing cannot masquerade as a new event.
In production, teams should define ownership and apply structured fields, event and trace IDs, timestamps, response codes, retry numbers, secure redaction, centralized retention, and searchable indexing. Monitoring for Webhook Log should track delivery age, signature failures, duplicate rate, retry exhaustion, and unresolved business events.
Useful measures include log coverage, ingestion delay, searchable event rate, redaction incidents, and investigation time. Webhook Log is closely connected to Webhook Event Log, Integration Monitoring, and Webhook Handler. For Webhook Log, the event identifier, signature result, delivery attempt, and resulting business state should remain connected throughout processing.
A receiver should treat transport acknowledgement and successful downstream processing as separate states for Webhook Log. The Webhook Log path should preserve ordering and duplicate evidence so delayed delivery cannot silently overwrite a newer state.
Recovery for Webhook Log should combine replay controls with an authoritative status check rather than trusting delivery history alone. A Webhook Log handler should acknowledge only after durable receipt when the provider’s retry contract depends on the response.
Related glossary concepts
Webhook URL; Request Deduplication; Webhook Subscription
Primary reference
Example
A gateway attempts to deliver event EVT-91 at 10:00, 10:01 and 10:04. A delivery log records each attempt's destination, signature version, HTTP status, latency and retry plan. The merchant's own processing log separately records whether EVT-91 actually changed the order state.
Comparison
Do not confuse delivered with processed or payment confirmed. Store event IDs and delivery-attempt IDs separately, redact credentials and sensitive customer data, and correlate retries without making every attempt a second transaction. Log retention and access rules should follow the business's privacy and incident-response obligations.
Key Takeaway
Keep delivery attempts separate from events and business processing outcomes.
Sources
- Webhook — OxaPay (2026-08-03)
- Receive Stripe Events in a Webhook Endpoint — Stripe (2026-08-03)
- CloudEvents Specification — Cloud Native Computing Foundation (2026-08-03)