> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.pixalate.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.pixalate.com/_mcp/server.

# Find domain mismatches

> Use the URL, Domain and True Domain dimensions in Pixalate Analytics reports to identify misrepresented or spoofed domains, and schedule the report to keep watching.

A domain mismatch happens when the site declared for an impression isn't the site the ad was actually served on. This can be a sign of domain spoofing. The Pixalate Analytics dashboard has three dimensions that show where your impressions come from, so you can compare them side by side.

## The dimensions

| Dimension       | What it shows                                                                                                                                                                         |
| --------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **URL**         | The domain populated in your Pixalate measurement tags.                                                                                                                               |
| **Domain**      | The domain Pixalate detected.                                                                                                                                                         |
| **True Domain** | The actual domain the ad was served on, regardless of how many nested iframes it's in. Pixalate detects it with proprietary technology, and it's available for 75–85% of impressions. |

For full definitions, see [Dimensions](/analytics/dimensions).

## Find mismatches

1. Open a report under **Reports** (for example, **Domains**). See [Run and customize reports](/analytics/reports).
2. In **Results by Dimension**, select **Add Column** and add **URL**, **Domain** and **True Domain**.
3. Add the metrics you want to judge the impact by, such as **Gross Ad Counts** and IVT.
4. Look for rows where the three values don't agree, especially where the URL you passed differs from the True Domain.
5. To focus on one site, use **Apply Filters** to filter by URL, Domain or True Domain.

> **Note**
>
> The **Pre-Set Reports** group also has **Domain Mismatch** and **Subdomain Mismatch** reports. These dimensions are available in the standard reports, but only in some pre-set reports. Pre-set reports are optimized for load speed and may not have every filter. If a pre-set report doesn't offer them, use the matching report under **Reports**.

## Keep watching

Save the view and schedule it to arrive daily, weekly or monthly, so new mismatches show up without you running the report by hand. See [Save, schedule and export a report](/analytics/reports#save-schedule-and-export-a-report).

## Related

* [Dimensions](/analytics/dimensions)
* [Reported IVT types](/analytics/ivt-types)
* [App spoofing](/mrt/app-spoofing), for the app equivalent in the MRT
* [Run and customize reports](/analytics/reports)

Questions? Contact [support@pixalate.com](mailto:support@pixalate.com).