Blog
Guides, tutorials, and insights for webhook development.
Stripe Webhook Signature Verification Failed: Causes & Fixes
Why Stripe's webhook signature verification fails — parsed instead of raw body, wrong signing secret, timestamp tolerance, proxies — and how to fix each, with code.
Webhook Not Received? A Systematic Debugging Checklist
A step-by-step checklist for when a webhook never arrives: confirm the provider sent it, rule out URL/DNS/firewall issues, check event subscriptions, and isolate where it was lost.
Webhook Returns 500 in Production: Diagnose and Fix
Your webhook handler returns 500 and the provider keeps retrying. How to find the real error, stop retry storms, make handlers idempotent, and acknowledge fast.
Webhook Replay: The Definitive Guide to Replaying and Resending Webhooks
How to replay webhooks: resend captured payloads to any URL, fix handler bugs, reproduce incidents locally, and handle signatures and idempotency safely.
Webhook Monitoring: How to Monitor Webhooks in Production
Monitor webhooks in production: the four signals to track, provider vs consumer-side monitoring, alerting on silence, and forensics with captured history.
How to Debug Shopify Webhooks in 2026
Debug Shopify webhooks fast: verify the X-Shopify-Hmac-Sha256 header, fix 401s, survive the 19-retry deletion rule, and replay real payloads to localhost.
Ngrok Alternative for Webhooks: Test Webhooks Without a Tunnel
Test webhooks without ngrok. Get a permanent URL in one second, inspect every request, and replay to localhost with one CLI command. No tunnel, no authtoken.
How to Receive Webhooks on Localhost: Tunnels, Provider CLIs, and Pull-Forwarding
Three ways to forward webhooks to localhost — tunnels, provider CLIs, and pull-forwarding — plus a full local development walkthrough with replay.
How to Debug Stripe Webhooks in 2026
Debug Stripe webhooks fast: trace failed deliveries, inspect payloads, handle retries, and fix signature errors. With real-time capture via HookSense.
Webhook Security Best Practices: HMAC Signature Verification
Secure webhook endpoints with HMAC signature verification. Step-by-step code for Stripe, GitHub, Shopify, Python, Go, Ruby, timing-safe compare, and secret rotation.
GitHub Webhooks: Complete Setup, Payload & Security Guide
Complete GitHub webhooks tutorial: setup steps, push & pull_request payload examples, HMAC X-Hub-Signature-256 verification in Node, and ready-to-copy CI/CD automation. Test live with HookSense.
Webhook.site vs HookSense: 2026 Comparison
An honest feature-by-feature comparison of Webhook.site and HookSense. Real-time updates, CLI forwarding, replay, pricing, and more.
What Are Webhooks? A Developer's Guide
How webhooks work in plain English: polling vs webhooks, real-world examples, and build your first webhook receiver step by step. No fluff, copy-paste ready.
How to Test Stripe Webhooks Locally (2026 Guide)
Learn how to test Stripe webhooks on your local machine. Compare Stripe CLI and HookSense for local webhook development and debugging.
Best Webhook Testing Tools Compared (2026)
Compare the top webhook testing tools: Webhook.site, HookSense, WebhookDebugger, and Hookdeck. Features, pricing, and which one to pick.
Webhook.site Alternative: Why Developers Switch to HookSense
Webhook.site has a 24-hour limit and no real-time updates. See why developers are switching to HookSense for webhook testing.
Hookdeck vs HookSense: Honest Comparison for Webhook Debugging
When does Hookdeck make sense vs HookSense? An honest comparison of event gateways and webhook inspectors, with pricing math.
Webhook Idempotency: Why It Matters and How to Implement It
Webhook providers retry deliveries. Without idempotency, retries cause double charges and duplicate emails. Here's how to build idempotent handlers.
Webhook Retry Strategies: Exponential Backoff Done Right
How major providers retry failed webhooks — Stripe, GitHub, Shopify — and how to design retry logic for your own outbound webhooks.
How to Test Webhooks in CI/CD Pipelines
Capture real webhooks once, replay them from CI on every PR. End-to-end webhook tests that don't depend on provider sandboxes.
Webhook vs Polling: When to Use Each
Webhooks push events; polling pulls state. Compare latency, reliability, complexity — and learn when a hybrid is the right answer.
Securing Webhooks: Top 10 Vulnerabilities to Avoid
The ten most common webhook security mistakes and how to fix them: signature bypass, replay attacks, SSRF, secrets in logs, and more.