Free to embed
Put a real Amazon profit calculator on your page.
Most embeddable Amazon calculators compute ACoS and stop, which tells a seller nothing about whether a bid is affordable. This one derives the highest CPC that still leaves the seller the profit they said they need to keep. Free, no attribution fee, no sign-up, no tracking.
Copy and paste
One iframe. Nothing else required.
Drop this wherever the calculator should appear. It is responsive and capped at 600px wide by default; change or remove max-width to suit your layout.
<iframe
src="https://ceilr.com/embed/profit-safe-cpc.html"
title="Amazon Profit-Safe CPC calculator by CEILR"
width="100%" height="560" loading="lazy"
style="border:1px solid #dfe6ee;border-radius:12px;max-width:600px"
></iframe>The widget posts its height to the parent window, so the iframe can size itself to the content instead of you guessing. Add this once per page if you want that.
<script>
addEventListener("message", (event) => {
if (event.origin !== "https://ceilr.com") return;
if (event.data?.type !== "ceilr:embed:height") return;
for (const frame of document.querySelectorAll('iframe[src^="https://ceilr.com/embed/"]')) {
if (frame.contentWindow === event.source) frame.style.height = event.data.height + "px";
}
});
</script>Why it is safe to put on your site
You can verify these rather than take our word for them.
| Property | How it is enforced | Check it yourself |
|---|---|---|
| Makes no network requests | The /embed/* response sets connect-src 'none', so the browser blocks any request the widget could attempt. | Open your browser's network panel with the widget loaded. |
| No cookies, no tracking, no analytics | The widget loads one stylesheet and one script from ceilr.com and nothing else. | Inspect the response headers and the two source files. |
| Seller figures never leave the page | Every calculation runs in the visitor's browser. There is nothing to send and nowhere to send it. | Read /embed/widget.js — it is short and unminified. |
| No inline script execution | script-src 'self', so nothing injected into the frame can run. | Inspect the Content-Security-Policy response header. |
| Nothing to clickjack | Framing is permitted only on /embed/*, which has no login, no forms and no state-changing action. | Every other CEILR path still refuses framing. |
Terms
Free to use, with the attribution link left intact.
You may embed it on commercial and non-commercial sites, including pages that compare CEILR with other tools. The only condition is that the “Profit-Safe CPC calculator by CEILR” link stays visible and followable. Do not modify the arithmetic and present the result as CEILR’s.
What the widget computes
The same arithmetic CEILR uses, not a simplified version.
Full calculator on CEILRThe same maths with more context.
Every term definedContribution, break-even CPC, target ACoS, Profit-Safe CPC.
Profit-Safe vs Fundable CPCWhy cash can bind before profit does.
CEILR methodologyHow the numbers connect to a decision.
Open the widget on its ownSee exactly what your visitors get.
The widget is genuinely free. It exists because a seller who understands their own CPC ceiling is the seller most likely to want the rest of CEILR.
Beyond one keyword