Clarvivo

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Check whether Microsoft UET sees the conversion page

Audit browser-visible UET activity on a public lead or order confirmation page without submitting a form.

Public conversion page

Inspect the public page where a Microsoft Ads conversion should fire. We capture browser-side UET requests only and never submit any form.

This tool answers: Does Microsoft UET record a browser-side conversion at the right place?

Enable JavaScript to run the check — the diagnosis itself is free and needs no account.

Why this happens

Microsoft Advertising measures conversions through its Universal Event Tracking (UET) tag. Conversion goals are defined in the account, but they only record conversions when the UET tag fires on the right page, or sends the right custom event.

Because Microsoft Ads often runs alongside Google Ads with less attention, its tracking is the first to break and the last to be checked. The base tag may be present while the conversion event is missing, or the goal may be based on a URL that changed months ago.

This checker loads your conversion page and reports whether the UET tag fired and whether a conversion event was sent.

Next checks

These answer the questions this one tends to raise.

How this check works

So you can trust the result — and your developer can verify it.

  1. We load the conversion page

    The public page is opened in an isolated browser. No form is submitted.

  2. We capture UET requests

    Requests to Microsoft's UET endpoint are recorded with their event names.

  3. We check for a conversion event

    We report whether the page sent only page-load hits or a conversion event your goal can use.

Common causes and fixes

UET base tag missing
Install the base tag on every page so destination-URL goals and audiences work.
Goal based on an old URL
Destination-URL goals break when the thank-you URL changes. Review goal conditions after site changes.
Custom event not sent
Event-based goals need a matching custom event on the confirmation page.
Consent blocks UET
Microsoft supports consent mode for UET; if consent is denied, conversions may not be recorded.

Frequently asked questions

What is UET?
Microsoft Advertising's Universal Event Tracking tag, used for conversions, audiences and remarketing.
Can it see offline conversions?
No. Offline and imported conversions never pass through the browser, so only browser-side UET requests are visible.
Does it submit forms?
No. The scan is passive and never fills in or submits a form on your page.
Which page should I test?
The page where your conversion goal should fire, usually a thank-you or confirmation page.
Does it check Google Ads too?
No, use the Google Ads Conversion Tracking Checker for that.

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What this tool reads, and what it keeps