eBay SEO Services: Master the Cassini Algorithm

eBay optimization prices below Amazon and Walmart because listings are simpler and turnaround is faster. Expect $80-$250 per listing at market, with store-level retainers around $800-$2,500 monthly. Our published packages start at $149 for a single listing and scale down per unit in volume packs. Managed retainers run $1,450 per month.

Listing changes are typically re-indexed by eBay within 24 to 72 hours. Ranking movement usually becomes visible within 2 to 4 weeks as the algorithm gathers new conversion and click data against the optimized listing. Competitive categories take longer because incumbent listings have deeper sales history.

Cassini is eBay's search ranking system. It weights relevance signals from your listing content against performance signals such as conversion rate and seller quality. Our optimization work addresses both sides: making listings eligible for more queries, then improving the conversion signals that determine placement among eligible listings.

We coordinate organic optimization with your advertising rather than managing ad spend directly. Ad-driven sales feed the velocity signals that lift organic rank, so the two need to target the same keyword set. We supply the keyword architecture your ad team or agency should bid against.

Yes. Most of our marketplace clients sell on two or more platforms. We maintain a single keyword and attribute source of truth, then adapt copy, character limits, and structured data to each platform's requirements rather than copy-pasting between them.

Per-listing pricing stops making sense past roughly 50 SKUs. At that scale we switch to a managed retainer with templated bulk optimization, prioritizing your highest-revenue listings for manual work while systematically improving the long tail.

Yes. All copy is written by humans on our marketplace team, reviewed by an editor, and approved by you before it goes live. We never publish anything to your account without sign-off.

We guarantee delivery of the specified scope. No ethical provider can guarantee specific marketplace rankings because the algorithms are controlled by the platform and influenced by competitor behaviour, pricing, and inventory that sit outside our control.