Attribution (UTM)

When a visitor clicks through from a widget on your site and signs up for DealSize, that sign-up should be attributed to you. This page explains how attribution works and what you must do to make it reliable.

Pass data-utm-source explicitly

<script
  src="https://www.dealsize.ai/dealsize-widget.js"
  async
  data-widget="news"
  data-symbol="EURUSD"
  data-utm-source="yourdomain.com"
></script>

The value should identify your site or organization. Your domain name is the recommended convention.

When set, outbound links from the widget to the DealSize app carry utm_source=yourdomain.com together with a widget-specific utm_campaign (for example news_widget), and the attribution is persisted through the sign-up flow.

Why the referrer is not enough

It is tempting to assume the widget can read document.referrer inside its iframe and discover your domain automatically. In practice this is unreliable:

• The Referrer-Policy your site (or your CDN) sends controls what, if anything, the iframe sees. The modern default, strict-origin-when-cross-origin, truncates the referrer to the bare origin, and stricter policies such as no-referrer remove it entirely.
• Privacy-focused browsers and extensions strip or spoof cross-origin referrers regardless of your headers.
• Referrers disappear on subsequent in-widget navigation.

Because any of these silently produces an empty or wrong referrer, referrer-based attribution can lose sign-ups you should have been credited for. The explicit data-utm-source attribute is immune to all of the above.

Support per widget

Widget	Attribution today
News	data-utm-source: supported, always pass it
Trading Signals	Outbound promo links carry widget campaign parameters
Economic Calendar	Currently derived from the iframe referrer, with the limitations above

caution

If your embed URL carries no explicit source and the browser strips the referrer, sign-ups from your site cannot be credited to you. When in doubt, include data-utm-source. Unsupported parameters are ignored harmlessly, so it is always safe to pass.