Embed the leakage calculator

The snippet

Paste where the widget should appear. The script tag is optional — it lets the frame grow to fit the report instead of scrolling, and it only accepts resize messages from https://pointsbrain.com, for the iframe that sent them. Without it the widget still works at a fixed 980px.

<iframe src="https://pointsbrain.com/embed/leakage"
  title="PointsBrain rewards-leakage calculator"
  style="width:100%;max-width:720px;border:0"
  height="980" loading="lazy"></iframe>
<script>
  addEventListener("message", function (e) {
    if (e.origin !== "https://pointsbrain.com" || !e.data || !e.data.pbEmbedHeight) return;
    document.querySelectorAll("iframe").forEach(function (f) {
      if (f.contentWindow === e.source) f.height = e.data.pbEmbedHeight;
    });
  });
</script>

Ground rules

• The widget is identical to the on-site calculator: the balance-carrier guardrail (no rewards math for anyone carrying a balance), floor valuations, and the verified facts catalog all apply. Do not overlay, crop, or alter its numbers or disclosures.
• Zero affiliate weight: no payout influences any result, in the widget or anywhere else. The standing policy is on the affiliate disclosure page.
• The widget runs our first-party analytics inside the iframe (anonymous usage events — see privacy). It sets no cookies on your domain and reads nothing from your page; the only cross-frame message is the pixel height above.
• Educational software, not financial advice. Methodology, valuations, and the card catalog are documented at /methodology and /valuations; found an error? Report it.

Live preview

This is the widget itself, rendered through the exact snippet integration above.