BlogSegment Webhooks

How to Test Segment Webhooks

Segment webhook destinations forward identify, track, page, and group events from your analytics pipeline to any HTTP endpoint.

Looking for the broader picture? See the 7 best webhook testing tools (2026), or if you're already on Webhook.site, the 60-second migration to HookRay.

Segment Official Webhook Docs

1. Segment Webhook Events

Segment can send the following webhook events to your endpoint:

identify
track
page
screen
group
alias

2. Set Up a Test Endpoint with HookRay

Follow these steps to start receiving Segment webhooks for testing:

  1. Go to HookRay and click "Start Testing — Free" to get your unique webhook URL.
  2. Copy the URL (e.g., https://h.hookray.com/abc123).
  3. In your Segment dashboard, navigate to the webhook settings and paste the HookRay URL as your endpoint.
  4. Select the events you want to receive (see list above).
  5. Trigger a test event — HookRay will show the incoming webhook in real-time.

3. Sample Segment Webhook Payload

Here's an example of what a Segment webhook payload looks like:

payload.json
{
  "type": "track",
  "event": "Webhook Test Completed",
  "userId": "user_abc123",
  "properties": {
    "webhook_url": "https://hookray.com/h/abc123",
    "status": "success",
    "response_time_ms": 142
  },
  "context": {
    "library": {
      "name": "analytics.js",
      "version": "2.1.0"
    }
  },
  "timestamp": "2026-03-20T19:15:00.000Z"
}

4. Frequently Asked Questions

How do I test Segment webhooks without deploying?

Use HookRay to get an instant public webhook URL. Paste it into your Segment dashboard's webhook configuration, trigger an event, and watch the payload arrive in real time. No code, no ngrok, no deployment required. The free tier captures 100 requests per month and works on all Segment event types.

Why aren't my Segment webhooks arriving?

The four most common causes: (1) the endpoint URL isn't publicly accessible — Segment can't reach localhost; (2) the wrong events are subscribed in your Segment dashboard; (3) signature verification is rejecting the request before your handler runs; (4) Segment can't reach your server because of a firewall, expired SSL certificate, or wrong DNS. Use HookRay's URL to isolate which of these four is failing — if HookRay receives the webhook, the problem is in your handler. If HookRay doesn't, the problem is in Segment configuration.

Why am I getting 400 or 500 errors from my Segment webhook?

Segment reports the response status your endpoint returned. HookRay accepts any payload and returns 200 OK by default, so if you see 400/500 in your Segment dashboard while pointing at HookRay, the issue is in Segment's configuration (wrong event, malformed signing secret, etc.). If you point at your own endpoint and get 400/500, the issue is in your handler — capture the request with HookRay, replay it locally, and debug from the captured payload.

How do I verify Segment webhook signatures?

Segment signs each webhook request with a shared secret. Capture the raw headers and body using HookRay, then verify the signature in your application using Segment's SDK or a standard HMAC library. Once verification works against HookRay-captured data, you can safely deploy. Segment's docs (linked above) cover the exact signing algorithm.

Can I replay a captured Segment webhook?

Yes — HookRay's replay feature re-sends any captured webhook to a different endpoint with one click. This is the fastest way to fix a buggy handler: capture the payload once, fix your code, and replay until it works. No need to re-trigger the event in Segment.

5. Next Steps

  • Use HookRay's webhook replay feature to re-send captured webhooks while building your handler
  • Enable smart parsing (Pro plan) to see Segment-specific fields highlighted automatically
  • Check the Segment webhook documentation for the complete event reference

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Free PDF: Webhook Testing Cheat Sheet 2026

One-page reference for 50+ APIs — canonical events, signing methods, sample payloads. Print it, pin it, share it.

📄 Download the cheat sheet (PDF, 180KB)