CEILR is decision software for Amazon sellers. It starts from your own unit economics (price, landed cost, Amazon fees and the profit you want to keep) and works out a Profit-Safe CPC, the highest cost per click that still leaves that profit, plus a Fundable CPC your available cash can support.
Keyword evidence comes from your own Sponsored Products search term and targeting reports. Listing Lab checks keyword coverage and builds a backend search-term string within Amazon's 249-byte limit, and cash and reorder checks test any plan to spend more on ads.
CEILR is read-only: you make every change in Seller Central. One plan, US$39.95/month.
Amazon sellers often set PPC bids without knowing the most a click can cost and still leave profit, or whether cash and stock can support scaling. CEILR was built to make those decisions from the seller's own numbers. It is read-only, so every change stays in Seller Central.