Key Points About eBay's Cassini Algorithm:

1. Ranking Based on Relevance:
   • Cassini ranks listings based on relevance to the buyer’s search query. It considers factors like the title, description, and product category to match listings with the buyer’s intent.
2. Seller Performance:
   • Seller performance plays a crucial role in how items are ranked. This includes feedback ratings, shipping speed, customer service, and overall seller reputation. Sellers with high performance metrics tend to be favored in search results.
3. Item Specifics:
   • Cassini uses item specifics (like brand, size, color, condition) to categorize and rank listings. Ensuring that all your item specifics are filled in correctly can improve your listing’s visibility.
4. Listing Quality:
   • High-quality listings with detailed descriptions, clear photos, and competitive pricing generally rank higher. Cassini looks at the quality of the content to assess whether it matches what the buyer is searching for.
5. eBay's Best Match:
   • Best Match is the default sorting method used in eBay search. It shows the most relevant listings based on factors like pricing, shipping time, buyer history, and seller performance. Being ranked high on Best Match is essential for getting sales.
6. Customer Satisfaction:
   • Positive customer experience is critical. If your buyers are satisfied, you’re more likely to be ranked higher. This includes things like fast shipping, accurate listings, and good communication.
7. Item Price and Discounts:
   • Competitive pricing helps in ranking. Offering discounts and promotions (like Promoted Listings) can give your listings more visibility in search results.
8. Shipping Options and Free Shipping:
   • Listings that offer free shipping or competitive shipping rates tend to be ranked higher. Offering multiple shipping options can also improve the visibility of your listing.