Selling on eBay can be profitable, but success usually comes down to one thing: choosing the right products and pricing them correctly. That’s where eBay Product Research – previously known as Terapeak – becomes valuable. It helps sellers move beyond guesswork by showing what buyers are actually purchasing, how listings are priced, how much sellers charge for shipping, and how demand changes over time.
If you’re a dropshipper, reseller, or agency managing multiple eBay stores, this data can help you validate product ideas before you list them. Instead of copying competitors blindly or chasing trends too late, you can use Product Research to spot demand earlier, compare listing strategies, and build a more reliable sourcing plan.
In this guide, we’ll show you how to use eBay Product Research step by step, explain how it differs from Sourcing Insights, and share practical ways to turn marketplace data into stronger listings and better selling decisions.
Table of contents
- What is eBay Product Research
- Product Research vs. Sourcing Insights
- Who can access each tool
- How to use Product Research step by step
- How to interpret the data
- Common mistakes to avoid
- How to turn research into better listings
- Frequently asked questions
What is Terapeak (eBay Product Research)?
eBay Product Research, formerly called Terapeak, is a built-in Seller Hub tool that helps sellers analyze marketplace performance using real sales data. According to eBay, it gives sellers access to up to three years of sales history for millions of items, including sales trends, average sold price, sold price range, average shipping costs, number of sellers, listing format, and sell-through rate for items sold within the last 90 days.
That makes it useful for much more than finding “hot products.” You can also use it to compare pricing strategies, understand which listing formats perform best, gauge how crowded a niche is, and see whether free shipping is common in a category before you create your own listing.
Product Research vs. Sourcing Insights
eBay now separates what many sellers still casually call “Terapeak” into two related tools: Product Research and Sourcing Insights. Product Research is the main research tool available in Seller Hub. Sourcing Insights is designed to help sellers identify opportunity areas where demand is high and supply is relatively low.
| Tool | Best for | Access | What it helps you do |
| Product Research | Validating products, pricing, trends, listing strategy | Seller Hub users | See what sells, when it sells, and at what price |
| Sourcing Insights | Finding high-demand, lower-supply opportunities | Business sellers with a Basic eBay Store subscription or higher | Spot category gaps and sourcing opportunities |
If your goal is to test a keyword, compare sold prices, or understand how competitors structure listings, start with Product Research. If your goal is to identify under-served categories or single-stock opportunities, use Sourcing Insights alongside it.
Who can access each tool?
Product Research is available to sellers with access to Seller Hub. Sourcing Insights is available to business sellers with a Basic Store subscription or higher. That distinction matters because many guides still describe both tools as a single legacy Terapeak product, which can confuse newer sellers when they log in and see different names inside eBay.
Is eBay Terapeak Free?
A common question among new sellers is whether Terapeak requires a paid subscription:
- Terapeak Product Research: Completely 100% free for all eBay sellers with access to the eBay Seller Hub.
- Terapeak Sourcing Insights: Free for sellers with an active eBay Basic Store subscription or higher.
How to Access & Log In:
- Log in to your eBay Seller Hub.
- Click on the Research tab in the main menu.
- Select Product Research to open the Terapeak dashboard instantly.
How to use Product Research (Terapeak) step by step
1. Start with a focused keyword or product idea
Begin with a specific search rather than a broad niche. For example, searching for “portable dog water bottle” will produce cleaner, more actionable data than searching for “pet accessories.” A focused search makes it easier to compare similar listings, understand realistic sold prices, and judge whether there is enough room to compete.
If you’re still exploring categories, it can also help to review broader niche ideas first. For example, Yaballe’s guide to Best Dropshipping Niches to Sell in 2026 can help you narrow your product research to more promising segments before you dive into eBay data.
2. Refine the results with filters
Once you run a search, narrow the data using filters such as category, item condition, buyer location, seller location, marketplace, sale price, brand, or product identifiers like UPC and ISBN. eBay also supports more advanced search logic, including exclusions with “AND NOT” or a minus sign, and grouped keyword variations using “OR.” For example, a search such as iPhone XS MAX AND (64GB OR 256GB) can help isolate more relevant listing data.
This matters because broad, messy datasets often produce misleading averages. If your results mix used items with new ones, premium brands with generic versions, or bundles with single-item listings, your pricing conclusions will be much less reliable.
3. Look at demand, price, and shipping together
After filtering, focus on the core metrics that shape profitability: sales trends, average sold price, sold price range, and average shipping cost. eBay also highlights the number of listings offering free shipping, which is essential for understanding buyer expectations in your category.
However, a “good” price on paper doesn’t always equal a healthy profit. To protect your margins, you must account for the platform’s overhead costs that often catch sellers off guard:
- Final Value Fees (FVF): For most categories, these are approximately 13.6% (though they can reach 15% in categories like Media). Crucially, eBay calculates this on the total sale amount, which includes the item price, shipping, and sales tax.
- Per-Order Fixed Fees: Expect a fixed fee on every transaction. As of 2026, it is $0.30 for orders under $10 and $0.40 for orders over $10.
- Promoted Listings (Ads): In competitive niches, you may need to allocate an additional 5% to 12% for ad rates to maintain visibility in search results.
- The “Performance Tax”: Maintaining account health is a financial necessity. If your status falls to “Below Standard,” eBay applies an additional 6% surcharge on top of your standard fees, which can instantly turn a profitable product into a loss.
A product is truly viable only if the sold price range covers your sourcing cost plus roughly 15–20% in platform fees, while still leaving room for returns and a healthy net margin.
4. Study the top-performing listings
Once you identify a promising search result set, review top listings closely. Look at title structure, image quality, shipping offers, item specifics, returns, and whether sellers are using auctions, fixed-price formats, or multi-variation listings. Product Research can show which selling formats perform best, and that can influence how you position your own listing.
This is where marketplace research becomes practical. You’re not just learning what sells – you’re learning how strong sellers package the offer. If free shipping is common, buyers may already expect it. If top listings use clearer titles or better item specifics, that tells you where weaker sellers are leaving money on the table.
5. Validate with time trends and seasonality
One of the biggest advantages of Product Research over standard completed listings is the longer time horizon. eBay says Product Research can show data across up to three years, while completed listings are much more limited. That makes it easier to separate temporary spikes from durable demand.
If a product only performs well in a short seasonal window, that doesn’t necessarily make it bad – it just means you should treat it as a timed opportunity rather than a stable evergreen listing. That distinction is especially important for dropshippers trying to avoid overbuilding around short-lived trends.
6. Use Sourcing Insights to look for opportunity gaps
If you have access to Sourcing Insights, use it to confirm whether a category has strong demand but relatively limited inventory representation on eBay. According to eBay, Sourcing Insights helps sellers identify areas where demand is high and supply is low, and it can also help reveal which sold single-stock listings indicate sourcing opportunities.
That makes Sourcing Insights especially useful once Product Research tells you a product is viable. Product Research helps you validate the market; Sourcing Insights helps you judge whether there is enough room to enter it intelligently.
How to interpret the data
A lot of sellers stop at the averages, but the best use of Product Research is interpretive. A high average sold price means very little if the sold-price range is extremely wide or if shipping costs eat into your margin. Likewise, a strong trend line may look attractive until you notice there are already too many sellers or that buyer demand is concentrated in a region you don’t serve well.
As a rule of thumb, healthier opportunities usually combine stable demand, a sensible sold-price range, and an offer you can actually match or improve on. If you can source the product reliably, compete on total delivered cost, and create a stronger listing than the average seller in the dataset, the research is pointing in the right direction.
A simple example: researching portable dog water bottles
Let’s say you’re considering portable dog water bottles. You search the keyword in Product Research, filter for new items, choose your target marketplace, and narrow the price range to products that fit your intended margin. Then you compare average sold price, sold-price range, average shipping cost, listing format, and trend data over time.
If the data shows steady demand, reasonable pricing, and room to compete, you can move to listing analysis. Review the best-performing titles, look at the types of product photos used, check whether free shipping is common, and see how sellers communicate use cases or benefits. If you also have Sourcing Insights access, use it to confirm whether demand is outpacing available supply in that subcategory.
That’s the point where research becomes action. You’re no longer guessing that it “looks like a winner” – you’re making a listing decision based on actual marketplace signals.
How to Use Terapeak as an eBay Keyword Tool
Terapeak isn’t just for pricing and sold-item volume—it is also one of the most effective tools for eBay title SEO and keyword optimization.
Step-by-Step Keyword Extraction in Terapeak:
Build Your Title Strategy: Combine these high-converting keywords into your listing title (up to 80 characters) to boost visibility in eBay’s Cassini search engine.
Run a Search: Enter your core product query in Terapeak Product Research (e.g., “wireless mechanical keyboard”).
Filter by High-Volume Sales: Set the timeframe to 30 or 90 days and sort listings by Total Sold or Total Sales.
Analyze Top Titles: Examine the titles of the top 10% highest-selling listings. Look for repeating descriptive keywords, brand terms, model numbers, and specific attributes (e.g., “RGB”, “Hot-Swappable”, “Bluetooth 5.0”).
Extract Item Specifics: Note down common attributes listed under the top sellers’ Item Specifics tab.
Common mistakes to avoid
Many sellers misuse Product Research by searching too broadly, trusting averages without checking the spread, or assuming low sales always mean weak demand. Sometimes listings underperform because of bad photos, poor titles, weak descriptions, limited shipping options, or low seller credibility- not because the product itself is flawed.
Another common mistake is treating Product Research like regular completed listings. eBay explicitly notes that Product Research differs from completed listings because it supports longer time ranges, more specific search construction, more complete pricing data including accepted offers, and broader calculated metrics. If you ignore those differences, you miss much of the tool’s value.
Turn research into better listings
Once you’ve identified a viable product, the next step is execution. Use what you learned from Product Research to write a more search-friendly title, set a realistic price, choose the right listing format, improve item specifics, and match the shipping expectations buyers already show in the data.
For sellers managing larger catalogs, the challenge is often acting on research fast enough. That’s where listing tools become useful. Yaballe’s Product Finder is built directly into your Amazon-to-eBay automation flow—and it doesn’t just search, it analyzes your store and your margins to surface the products that are actually right for you. This means that from discovery to listing to fulfillment, everything happens in one coordinated system.
This coordinated system also includes Yaballe’s Auto-Lister, which is built for bulk listing, templates, an AI title optimizer, scheduling, and VeRO checks to easily turn market insights into live listings at scale.
If you want a broader framework for that next stage, Yaballe’s eBay Dropshipping: A Step-by-Step Guide and eBay Dropshipping Strategy: Your Ultimate Guide are good follow-up resources. The first helps you understand the full dropshipping workflow, while the second connects product research to wider strategy, supplier selection, and store growth.
Frequently asked questions
Yes – but the name has changed. What many sellers still call Terapeak is now presented inside eBay as Product Research, with Sourcing Insights offered as a related tool for eligible store subscribers.
Product Research gives you longer historical coverage, more complete price data, more search specificity, and calculated metrics such as sell-through rate, seller count, and average shipping information. eBay’s standard completed listings view is much more limited.
Sourcing Insights is available to business sellers with a Basic eBay Store subscription or higher.
Start with search specificity, then look at trend data, sold-price range, average shipping cost, number of sellers, and whether the product fits your sourcing model. Those signals together are more useful than any single metric on its own.
Yes, eBay provides official RESTful APIs—such as the Marketplace Insights API and Analytics API—which allow developers to programmatically access seller performance data and market trends similar to Terapeak.
However, if you are looking to automate product research, price monitoring, and listing creation directly without writing code, using dedicated eBay dropshipping software like Yaballe integrates seamless market tracking directly into your automated workflow.
Yes, Terapeak Product Research is 100% free for all sellers with access to the eBay Seller Hub. Advanced sourcing analytics via Terapeak Sourcing Insights are also included at no extra cost for sellers with an active eBay Basic Store subscription or higher.
To use Terapeak as a keyword tool, open Terapeak Product Research in Seller Hub and search for your primary product topic. Filter the results by top-selling listings over the last 30 to 90 days, then analyze the highest-performing titles and item specifics to identify high-volume, high-converting search terms to use in your own listing titles.
Log in to your eBay Seller Hub dashboard, navigate to the Research tab in the main top navigation menu, and click on Product Research. This takes you directly to the Terapeak tool.
