eBay's Cassini search algorithm — like Amazon's A9 — ranks listings based on relevance signals, buyer behavior, and seller performance. Most sellers focus on price and title, then wonder why their listings underperform. The five tips below target the specific levers Cassini responds to and that buyers actually care about when deciding whether to click Buy It Now.
Each tip includes a before/after example so you can see the difference concretely, not just in theory.
Optimize Your Title With Item Specifics Working Together
eBay gives you 80 characters for your title and a separate set of Item Specifics fields (Brand, Model, Color, Size, MPN, etc.). Most sellers treat these as independent — they write a title, then fill in some Item Specifics as an afterthought. The sellers who rank well treat them as a coordinated system.
Here's why: Cassini uses your title to match your listing to keyword searches, and it uses Item Specifics to match your listing to filtered searches. A buyer who searches "Nike Air Max 90 size 10 white" and then filters by brand and size will only see listings that have both a keyword-rich title AND correctly filled Item Specifics. Missing either means you're invisible to that buyer — even if your product is exactly what they want.
The title formula that works: Brand + Model/Type + Key Spec + Condition. Every word should be something a real buyer would type. Drop filler words ("nice," "wow," "look") — they waste your 80 characters and hurt click-through rates.
"Nike Shoes Men's Running Shoes Athletic Sneakers Size 10 NEW!!"
"Nike Air Max 90 Men's Running Shoes Size 10 White/Black — New in Box"
The "before" title is vague — "Nike Shoes" matches thousands of unrelated listings. The "after" title hits the exact model buyers search, includes all the attributes they filter by (size, color, condition), and leaves no ambiguity about what's included.
Complete every available Item Specific field for your category — not just the required ones. eBay's own data shows listings with complete Item Specifics rank significantly higher in Best Match. It takes 3 minutes and directly impacts how many filtered searches your listing appears in.
Use at Least 12 Photos — and Shoot Them Right
eBay allows up to 24 photos per listing. The average listing uses 3–4. High-performing listings average 12+. This isn't coincidence — photo quantity and quality are among the strongest signals for buyer confidence, and buyer confidence is what drives conversions.
Buyers on eBay are making a purchase decision without physically touching the item. Photos are the closest thing to an in-person inspection they get. Every question a photo doesn't answer becomes a reason not to buy. 12 photos isn't arbitrary — it's roughly the minimum needed to eliminate ambiguity for most product categories.
What 12 photos covers: Front, back, both sides, top, bottom, any ports or buttons, all included accessories, any visible wear or flaws (from multiple angles), and size reference (held in hand, next to a ruler, or compared to a common object).
3 photos: blurry front shot on carpet, one side angle, one stock-style image. No detail shots. Flaws not shown.
14 photos: all angles, ports/buttons, included accessories, minor scuff on base (2 angles), size reference next to hand, original box front and back.
The technical requirements: shoot in natural light or with a softbox (harsh shadows obscure details), use a neutral background (white, gray, or solid color — not carpet or clutter), and shoot at least 1600×1200px so buyers can zoom in. eBay's zoom feature is used heavily — blurry photos that fall apart under zoom signal low quality and drive buyers away.
Critically, always photograph any flaws. This feels counterintuitive, but it builds trust. A buyer who sees a scuff in your photos before purchasing doesn't open a return case. A buyer who discovers that scuff after delivery might. Returns damage your seller metrics, which hurts your Cassini rankings permanently.
Be Transparent About Condition — It Converts Better Than You Think
Most sellers list items as "Good" or "Very Good" and write a vague condition description to avoid scaring buyers away. This backfires. Vague condition descriptions create anxiety, not confidence. A buyer who can't tell exactly what they're getting will either message you (delaying the sale) or move on to a listing where they can.
Transparency does the opposite of what most sellers fear — it increases conversions for buyers who are the right fit, and weeds out buyers who would have returned the item anyway. Both outcomes are good for your business.
"Item is in good used condition. Normal wear and tear. Please see photos. Sold as-is."
"Fully functional. Minor scuff on bottom-left corner (visible in photo 6) — doesn't affect use. Screen is clean with no scratches. Battery holds charge for approximately 6 hours. All original accessories included."
The "before" description is technically accurate but tells the buyer nothing useful. "Normal wear and tear" could mean a hairline scratch or a cracked case — the buyer has no idea. "After" describes the exact condition with specifics a buyer can evaluate: where the flaw is, what it looks like, whether it affects function, and what's actually included.
Buyers who read the "after" description and still purchase are pre-qualified. They know exactly what they're buying. This dramatically reduces return rates — which directly improves your seller feedback score and Cassini ranking over time.
Use Free Shipping Strategically
eBay buyers have a strong psychological aversion to shipping costs — even when the total price (item + shipping) is identical to a competitor offering free shipping. This is well-documented buyer behavior: a $25 item with $5 shipping feels more expensive than a $30 item with free shipping, even though the math is the same.
eBay knows this and rewards it accordingly. Cassini gives a ranking boost to free shipping listings. The "free shipping" filter is one of the most commonly used on the platform. Listings without free shipping are invisible to every buyer who filters for it — which on competitive categories is a significant portion of total search traffic.
The math is straightforward: Calculate your typical shipping cost for the item (weight, dimensions, destination average). Add that cost to your Buy It Now price. Offer free shipping. Your margin stays the same, your visibility increases, and buyers perceive higher value. The only cost is the psychological framing — which costs you nothing.
Item price: $22.00. Shipping: $6.99 calculated. Total to buyer: ~$28.99.
Item price: $28.99. Shipping: Free. Total to buyer: $28.99. Appears in free shipping filter. Cassini boost applied.
For heavier items or categories with high variance in buyer location, you can use eBay's calculated shipping instead of free shipping — but offer free shipping on your most competitive listings where the price difference is small relative to the conversion benefit.
One important nuance: free shipping is most effective at increasing sales velocity, not margin. If your margins are razor thin and you're selling heavy items nationally, calculated shipping may be the right choice. Apply free shipping selectively where it makes economic sense, not uniformly across all inventory.
Use Pricing Psychology and Best Offer Together
Price is the most obvious lever in eBay selling, but most sellers use it bluntly — lowest price wins. The reality is more nuanced. Price psychology on eBay operates on two levels: the price you display and the Best Offer mechanism you attach to it.
Pricing psychology: Prices ending in .99 or .95 consistently outperform round numbers in conversion rates. A $29.99 listing outperforms $30.00 — not by a dramatic margin, but measurably and consistently across categories. More importantly, pricing your item slightly above your true target price and enabling Best Offer creates an anchor that lets buyers feel they've "won" the negotiation.
Best Offer is underused: Listings with Best Offer enabled get significantly more engagement than fixed-price listings at the same price point. Many buyers prefer making an offer even when the Buy It Now price is fair — the control is part of the appeal. You can auto-accept offers above your floor price and never even review them manually.
Fixed price: $45.00. No Best Offer. Buyer either pays $45 or scrolls past. Low engagement on the listing.
Fixed price: $49.99. Best Offer enabled. Auto-accept: $42. Auto-decline: below $38. Buyer feels they're negotiating; seller is in control of the floor.
The "after" strategy works on multiple buyers simultaneously. Buyers who want the item immediately pay $49.99. Buyers who want to negotiate submit an offer and feel satisfied when it's accepted — even at $42, which was your target all along. Both buyers convert; neither walks away feeling like they overpaid.
Set your auto-accept threshold at 10–15% below your Buy It Now price. Set your auto-decline threshold at 20–25% below. This creates a negotiating band that satisfies most buyers while protecting your margin. You never need to manually review routine offers — eBay handles it automatically.
Quick-Start Checklist
Before you publish your next eBay listing — or audit your current ones — run through this checklist. Every item on this list has a direct, measurable impact on either search visibility or conversion rate.
eBay Listing Optimization Checklist
- Title: Brand + Model + Key Spec + Condition, validated against eBay autocomplete
- All available Item Specifics filled in (not just required fields)
- 12+ photos covering all angles, accessories, flaws, and size reference
- Photos are sharp at 100% zoom, shot on neutral background, no harsh shadows
- Condition description: function status + specific cosmetic details + what's included
- Any flaws explicitly described and photographed (not hidden)
- Shipping cost baked into price and listed as Free (where economically viable)
- Price ends in .99 or .95 (not a round number)
- Best Offer enabled with auto-accept and auto-decline thresholds set
- Listing viewed on mobile to confirm description and photos render cleanly
Why These Five Tips Work Together
Each tip above improves a different part of the conversion funnel. Title optimization and Item Specifics improve how many buyers find your listing. Photos and condition transparency improve how many of those buyers convert. Free shipping and pricing psychology improve the decision to buy over a competitor.
Apply all five and you're not just fixing one leak — you're improving every stage of the process simultaneously. A listing that ranks well, looks professional, describes the item honestly, has no surprise shipping cost, and offers negotiating flexibility has essentially no friction left in the buyer's path to purchase.
Most sellers implement one or two of these. The ones who implement all five are the ones with 99%+ positive feedback scores, high sell-through rates, and consistent sales regardless of seasonal demand. That's the competitive advantage available to any eBay seller who's willing to spend an extra 30 minutes per listing.
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Optimize Your eBay Listing Free →The eBay Seller's Compound Advantage
Better listings don't just sell more today — they build the seller performance metrics that compound over time. Higher conversion rates tell Cassini your listing is relevant. Higher conversion rates mean lower return rates. Lower return rates mean better feedback scores. Better feedback scores earn higher placement. Higher placement means more impressions for the same listing with no additional cost.
This is the flywheel every top eBay seller runs on. It starts with the quality of the listing itself — the title, the photos, the description, the shipping setup, and the price. None of these require a larger catalog, a better product, or more capital. They require better execution on what you already have.
Apply the checklist above to your top 10 listings by traffic this week. You'll have your answer within 30 days.