# Test your tracking end to end

> Confirm attribution is captured and reaches your CRM.

The most reliable way to test iTracker360 is to behave like a real lead and check that the source lands on the contact.

## Steps

1. Open an **incognito / private window** so you start with a clean slate.
2. Visit your site through a campaign link — build one in the [URL Builder](/features/url-builder), for example with `utm_source=test`.
3. Submit one of your **real forms** with a test email.
4. Open **Tracking → Activity** (or your CRM contact) and confirm the new lead appears with the source you used.

## If the source doesn't appear

- Check the snippet is on the page **and inside the form** if it's in an iframe — the [most common cause](/getting-started/where-to-place-the-snippet) of missing data.
- Make sure you submitted from the same browser session you started the visit in (don't clear cookies mid-test).
- Give it a moment — syncing happens shortly after the lead is captured.