How to Use Terapeak: eBay Product Research Guide (2026)

Quick Answer: Terapeak is now called Product Research on eBay. To use it, sign in to eBay Seller Hub, open the Research tab, and select Product Research. The tool is free for sellers with access to Seller Hub and provides up to three years of eBay sales data for product, pricing, demand, and competition research.

Key Takeaways

• Terapeak Product Research now appears in eBay as Product Research.
• On desktop, the current path is Seller Hub → Research → Product Research. Product Research is also available through the eBay mobile app for eligible sellers.
• Product Research offers preset research periods from 7 days to 3 years, plus a custom date range within the available history.
• The Sold and Active views show different market data. Sell-through rate is available only for searches covering items sold within the last 90 days.
• Sourcing Insights is a separate research tool included for qualifying business sellers with a Basic Store subscription or higher.
• A useful product decision should combine demand, price, competition, shipping, and the quality of the matching listings. One metric rarely tells the whole story.

If you are searching for how to use Terapeak for eBay, the first thing to understand is the name change. eBay now calls the core tool Product Research. Older tutorials, seller forums, and search results still use Terapeak, so both names refer to the same research workflow in many contexts.

That makes Terapeak useful well beyond simply finding “hot products.” Sellers can use the data to check whether an item has real sales history, compare realistic sold prices, spot seasonal demand, study competing listings, and make better listing decisions. If you are still deciding what to sell, Easync also has guides to best-selling items on eBay, what to sell on eBay, and broader product research tools.

Terapeak eBay: What Is It in 2026?

Terapeak began as an ecommerce analytics company. eBay acquired it in 2017 and said it would integrate Terapeak functionality into Seller Hub. The official eBay acquisition announcement described Terapeak as a service built around supply, demand, and pricing data.

Today, the main Terapeak feature is presented as Product Research. eBay describes it as a research tool that helps sellers understand what to sell, when to sell it, and at what price by using marketplace data from eBay transactions.

Legacy searches such as terapeak ebay, ebay terapeak, and ebay research terapeak usually point to the same eBay research tool.

Common misspellings include tera peak and terra peak ebay. Neither refers to a separate service inside eBay.

You may also see terapek or tara peak in search suggestions and older discussions. In this context, both refer to Terapeak.

How to Find Best-Selling Items on eBay With Terapeak

One of the most practical uses of Terapeak is finding out whether a product that looks popular is actually selling on eBay. Instead of judging an item by active listings alone, use Product Research to compare completed sales, price levels, demand, competition, and longer-term trends.

What to check	What it tells you	How to use it
Sold activity and total sold by listing	Whether buyers are actually purchasing the product	Compare close product matches and look for consistent sales rather than a few isolated transactions
Sell-through rate	How sales compare with available inventory for eligible searches	Use it as a demand signal, then compare it with competition and pricing
Average sold price	The typical price buyers have paid	Estimate a realistic selling-price range before sourcing or listing the item
Sold price range	How much prices vary between comparable sales	Investigate differences in condition, model, bundle size, or included accessories
Seller count	How many sellers have successfully sold the item	Gauge how crowded the market is and whether demand is spread across many sellers
Sales trend	Whether demand is stable, seasonal, rising, or fading	Review a longer date range before committing to inventory
Shipping data	What buyers commonly pay for delivery and how often free shipping is offered	Compare total delivered cost, not just the item price

A product does not become a strong opportunity simply because one metric looks good. The most useful Terapeak product research combines evidence that buyers are purchasing the item with a realistic sold price, manageable competition, and costs that still leave room for profit.

This is also why Product Research is more useful than browsing a list of trending products by itself. A broad list can give you ideas, but Terapeak lets you validate whether those ideas match real eBay sales data before you source inventory.

Where Is Seller Hub on eBay?

Terapeak Product Research lives inside eBay Seller Hub, eBay’s central dashboard for managing a selling business. The Seller Hub help page describes Seller Hub as the central place to manage selling activity.

If you are looking for the eBay Seller Hub login, you do not create a separate Seller Hub account. Sign in with your normal eBay username and password. Sellers who are not already opted in may need to meet eBay’s Seller Hub eligibility requirements before they can use the desktop research tools.

The eBay Seller Hub Overview page summarizes current selling activity. Product Research itself is under the Research tab, not the Overview page.

For anyone asking where is Seller Hub on eBay or looking for seller hub on eBay, the current desktop path to Terapeak is:

Seller Hub → Research → Product Research

After the eBay Seller Hub sign in, Product Research appears under Research for sellers with access to Seller Hub. eBay also provides Product Research in its mobile apps. eBay’s Product Research update says mobile users should open the Selling tab and scroll to the Product Research section; mobile eligibility and available features differ from desktop.

If you are coming from My eBay Seller Hub searches, remember that My eBay and Seller Hub are related parts of the same account, but Seller Hub is the dedicated selling dashboard. You use the same eBay credentials for both.

Newer sellers may also want to review how eBay selling limits work before building a large catalog.

Terapeak Price: Is Product Research Free?

For most sellers, the Terapeak price is straightforward: Product Research itself is available to sellers with access to Seller Hub without requiring a paid Store subscription.

Sourcing Insights is different. eBay’s Product Research documentation says Sourcing Insights is included at no extra cost for qualifying business sellers with a Basic Store subscription or above. The Store subscription itself is paid.

As of August 2026, eBay’s Store fee page lists these standard U.S. subscription rates. For both renewal options, eBay charges the subscription fee monthly.

Store	Yearly renewal rate, charged monthly	Monthly renewal
Starter	$4.95/month	$7.95/month
Basic	$21.95/month	$27.95/month
Premium	$59.95/month	$74.95/month
Anchor	$299.95/month	$349.95/month
Enterprise	$2,999.95/month	Not currently available

You do not need to buy a Store subscription just to use Product Research. If you are comparing margins after research, Easync’s eBay fee calculator can help you estimate marketplace costs separately from the research data.

What Data Does Terapeak Product Research Show?

eBay’s Product Research documentation says the tool provides access to the last three years of eBay sales data for millions of items.

In the current desktop Sold view, the summary bar includes:

• average sold price;
• sold price range;
• average shipping;
• percentage of sales with free shipping;
• sell-through rate for searches covering items sold within the last 90 days;
• total sellers.

Below the summary, individual result rows can show the listing, average sold price, average shipping, total sold, item sales, bids, and the date last sold.

The Active view answers a different question: what is competing for buyers now? Its summary currently shows average listing price, listing price range, average shipping, free-shipping share, total active listings, and promoted listings.

The longer history is especially useful for seasonal products. A product can look strong during a 30-day period and weak across the rest of the year. Looking at a longer window helps separate a recurring seasonal pattern from a one-off spike.

Product Research also provides more complete sold-price information than ordinary eBay sold-item search. eBay says it can show actual sold prices, including accepted Best Offers. That matters in categories where the listed asking price may differ substantially from what buyers actually paid.

How to Use Terapeak on eBay: Step-by-Step

The best way to learn how to use Terapeak is to work through a product search and narrow the data until the results represent the item you might actually sell.

Step 1: Open Product Research in Seller Hub

Sign in to Seller Hub with your regular eBay account. Open Research, then select Product Research.

The Product Research start screen includes a search field, a date-range selector, a Research button, and a Listing Site selector for the eBay marketplace you want to analyze.

On mobile, use the latest version of the eBay app, open the Selling tab, and scroll to Product Research. eBay notes that some desktop features are not available in the mobile version.

If you are following an older guide on how to use Terapeak on eBay, do not look for a separate Terapeak website. The research function is now integrated into eBay.

Step 2: Enter a Product and Choose the Research Period

The search field accepts keywords, MPN, UPC, EPID, EAN, or ISBN. Use the most specific identifier or product description that matches the item you are evaluating.

For example, a search for Apple AirPods Pro 2nd Generation can still pull in charging cases, individual replacement earbuds, protective cases, and related accessories. That is a useful reminder that a recognizable product name does not automatically create a clean dataset.

Product Research currently offers these preset periods:

• Last 7 days;
• Last 30 days;
• Last 90 days;
• Last 6 months;
• Last year;
• Last 2 years;
• Last 3 years;
• Custom.

The custom calendar also reaches back through the available three-year history. Sell-through rate is displayed only when the search covers items sold within the last 90 days; on longer ranges, that metric is not calculated.

Step 3: Use Filters to Remove Irrelevant Results

After a search, Product Research exposes the main research filters above the results. The current desktop interface includes:

• Category;
• Condition filter;
• Format filter;
• Price filter;
• Top rated;
• More filters.

Condition options depend on the category and results. In the tested consumer-electronics search, the menu included New, New other (see details), Certified – Refurbished, Used, and For parts or not working.

The Format filter can separate Auction, Best Offer accepted, and Fixed price results. Best Offer accepted is a research filter, not a third standalone eBay listing format.

The Top rated control can show only top-rated listings or exclude them. Under More filters, location filters are available, and additional item-specific filters can appear when the retrieved listings contain relevant item-aspect values. The available controls can differ between Sold and Active views.

Condition is still one of the most important filters. Mixing new, used, refurbished, parts-only products, bundles, and single items can make an average sold price misleading.

Step 4: Compare Sold and Active Listings

Use Sold when you want evidence of completed market activity. The summary includes sold-price and shipping data, sell-through for eligible periods, and the number of sellers. Individual rows show how specific listings performed.

Switch to Active when you want to see the listings competing for buyers now. The current Active summary includes average listing price, listing price range, average shipping, free-shipping share, total active listings, and promoted listings.

The two views should be read together. Sold data shows what buyers accepted; Active data shows the offers your listing would have to compete against today.

Step 5: Compare Sold Price, Price Range, and Trends

Do not stop at average sold price. First compare the average with the sold-price range, then inspect the listings that sit at different points in that range.

Suppose the average sold price is $70. If most close matches sell between $65 and $75, the average is a useful reference. If the range stretches from $20 to $180, the dataset probably contains meaningful product differences that need to be understood before you set a price.

Next, review the sales trend. A steady pattern over several months supports a different inventory decision than a short burst around a holiday or product launch.

Step 6: Read Sell-Through Rate in Context

Sell-through rate is useful, but it should not be treated as a universal “good product” score. eBay specifically states that Product Research provides sell-through rate for searches of items sold 90 days ago or less.

There is no official eBay threshold that says every product above 40%, 60%, or 80% is automatically attractive. Category, price, condition, listing quality, seasonality, and the accuracy of your search all affect what the number means.

A vintage collectible with a small buyer pool should not be judged by the same benchmark as a replenishable everyday accessory. Use sell-through together with the sold-price range, seller count, sourcing cost, shipping, and the longer sales trend.

Step 7: Check Shipping and Competitive Position

Product Research includes average shipping costs and the share of sales or listings offering free shipping. These figures help you compare the total buyer cost rather than item price alone.

A listing at $31 plus $9 shipping is not necessarily more competitive than a similar item at $35 with free shipping. For bulky or fragile products, shipping can also be the difference between an attractive sold price and an unattractive margin.

Then look at the individual listings behind the numbers. Compare photos, item specifics, title wording, condition, shipping terms, returns, and selling format. The goal is not to copy another seller. It is to understand what distinguishes the listings that buyers are choosing.

How to Analyze the Main Terapeak Metrics

The metrics become more useful when each one answers a specific business question.

Average Sold Price and Sold Price Range

Average sold price gives you a reference point. The price range tells you whether that reference point is representative.

When the range is wide, investigate the listings behind the number. Differences in condition, generation, included accessories, quantity, and product variation often explain why similar-looking items sell at very different prices.

Sales Trends

Sales trends show how demand and pricing change over time. Use the three-year history when seasonality matters or when you want to see whether a recent increase is part of a recurring pattern.

For example, a product that peaks every November and December may be useful seasonal inventory but a poor candidate for aggressive restocking in spring.

Sell-Through Rate

Sell-through rate is most useful after you have narrowed the query carefully. A broad search can combine unrelated listings and create a number that looks precise while describing the wrong market.

Rather than asking only whether the percentage is “high,” ask whether enough comparable items sell at a price that still works after your real costs.

Seller Count and Competition

Seller count helps show how many sellers have participated in that market during the selected period. High demand can exist alongside heavy competition.

That is why a large sales total does not automatically mean an easy opportunity. Check how many sellers are competing, how concentrated the sales appear, and whether your listing can offer a comparable product, condition, delivery promise, or price.

Shipping Data

Average shipping and free-shipping data show what buyers are accustomed to seeing. Use them when building your price strategy, especially in categories where shipping is a meaningful share of the order value.

eBay Terapeak: Selling Formats and Best Offer

Product Research’s Format filter currently lets you narrow results to Auction, Best Offer accepted, or Fixed price. eBay’s core listing formats are auction-style and fixed price; Best Offer is an option that can be enabled on eligible listings rather than a separate core listing format.

When Best Offer accepted is selected, Product Research can report the actual transaction price. A result may still be labeled Fixed price because that was the listing format even though the final sale was completed through an accepted offer.

Product Research vs. Regular eBay Sold Items Search

Product Research goes further than the normal Sold Items view. eBay’s Seller Center says Product Research can look back through the last three years, compared with the most recent 90 days in regular Sold Items search. It also provides actual selling prices, including prices from accepted Best Offers, plus aggregated market data.

Feature	Product Research	Regular Sold Items search
Historical coverage	Up to 3 years	Most recent 90 days
Accepted Best Offer price	Actual accepted selling price can be included	The result may show the listing price or “or Best Offer” without exposing the accepted offer in the same way
Aggregated market metrics	Avg sold price, sold price range, shipping, sell-through for eligible periods, seller count, trends	No Product Research-style market summary
Active-market analysis	Separate Active view with listing-price and competition metrics	Normal marketplace results and filters
Best use	Product validation, pricing, trend and competition analysis	Fast review of individual recent sold listings

Regular Sold Items search is still useful for quickly examining recent comparables. It shows individual listings, sold dates, visible prices, condition, shipping, seller information, and marketplace filters. Product Research is the better option when the decision depends on a longer history, market-level metrics, or the actual accepted Best Offer price.

How to Use Sourcing Insights

Sourcing Insights is designed for a different question: where might there be room to source more inventory?

eBay says Sourcing Insights is included at no extra cost for qualifying business sellers with a Basic Store subscription or above. It is available under the Research tab in Seller Hub.

The tool is intended to help sellers:

• analyze eBay categories and product performance;
• identify categories where demand is high relative to inventory;
• use real-world sales data when deciding what to source next;
• examine item-specific combinations and inventory gaps.

If an account does not have the qualifying Store subscription, eBay displays a subscription prompt instead of the Sourcing Insights dashboard.

If you have access to Sourcing Insights, start there when you want broader sourcing ideas. Once a category looks promising, move to Product Research and test the exact items you may buy. Before committing to inventory, review comparable sold prices, the sales pattern over time, current competition, shipping costs, and the listings behind the numbers.

A high-opportunity or low-supply signal is a lead, not a guarantee of profit. There may be reasons supply is limited, including sourcing difficulty, expensive fulfillment, high return rates, or a very narrow buyer base.

If you need additional sourcing ideas before opening Product Research, Easync’s guides to trending products, high-ticket niches, and cheap wholesale products for resale can give you candidates to validate with eBay data.

How to Use Terapeak for eBay Keyword and Listing Research

Product Research is not a traditional keyword-volume platform, but it can still help with listing language because it lets you inspect products that actually sold.

Start with close product matches and note which accurate attributes appear repeatedly in successful listings. These may include model numbers, capacities, sizes, materials, compatibility details, or condition terms.

Compare that wording with the item you actually have. If a model or part number keeps appearing in sold listings and it accurately applies to your product, it is usually worth including. Leaving out a defining identifier can make the listing less precise.

Do not copy another seller’s title word for word. Use Product Research to identify useful product language, then write a title that accurately describes your own item. Easync also provides an eBay Title Builder within its seller tools ecosystem, but marketplace data should still guide which attributes matter for the product.

Common Terapeak Research Mistakes

Searching Too Broadly

A broad query often mixes products that should not be compared. Narrow by model, condition, category, location, or another defining attribute before trusting the averages.

Treating the Average Sold Price as the “Correct” Price

An average is a summary, not a pricing instruction. The listings behind the number may have different condition, accessories, quantities, or shipping terms.

Using One Short Time Window

A strong week or month can be caused by seasonality, a temporary shortage, or a short-lived trend. Use the longer history when the decision involves stocking inventory for more than a few weeks.

Judging a Product Only by Sell-Through Rate

Sell-through does not include your sourcing cost, eBay fees, return costs, or operational expenses. A product can sell quickly and still produce a weak margin.

Ignoring Active Competition

Sold data tells you what buyers accepted in the past. Current listings show what your offer would compete against today. Both views matter when you are deciding whether a product still has room for another seller.

Assuming Unsold Listings Mean the Product Is Bad

A listing can fail because of poor photos, an inaccurate title, weak item specifics, the wrong condition, high shipping, or unrealistic pricing. Unsold inventory is evidence to investigate, not an automatic rule to avoid the product.

Advantages and Limitations of Terapeak Product Research

The biggest advantage of Product Research is that the data comes from eBay’s own marketplace. You can research actual sold prices, historical trends, seller participation, and shipping behavior without relying only on third-party estimates.

It is also free for sellers with Seller Hub access, which makes it a strong first research tool before paying for additional analytics software.

The limitation is that Product Research shows marketplace activity, not your personal net profit. It does not know your supplier cost, storage expense, return rate, taxes, or every operational cost attached to the item.

Search quality is another limitation. Accurate source data can still lead to a poor conclusion if the query mixes products that are not truly comparable.

Finally, Product Research is focused on eBay. If you sell across several marketplaces, you may need marketplace-specific data or additional dropshipping software and research tools for the rest of your workflow.

From Product Research to an Actual eBay Listing

Research matters when it changes what you do with the listing. Once a product looks viable, use comparable sales to set the price and see whether buyers in that niche tend to expect free shipping. The sold listings can also show which selling format, item specifics, and title details are common among close matches.

For sellers running a compliant eBay dropshipping or resale workflow, Easync can handle operational tasks after product selection, including listing management, price and stock monitoring, order workflows, and tracking synchronization. You can see the current eBay features on the Easync eBay automation page or read the broader eBay dropshipping guide.

This is where research and automation should stay separate. Product Research helps you decide what the marketplace data supports. Automation helps you manage repetitive work once the product is in your catalog.

If you are comparing automation options, the Easync overview and its AutoDS review provide additional context on tools used for listing and store operations.

Frequently Asked Questions

Is Terapeak still available on eBay?

Yes. eBay still provides the core Terapeak research functionality, but the tool is now called Product Research. You can access it through the Research tab in Seller Hub.

Where do I find Terapeak on eBay?

Sign in to eBay Seller Hub, open Research, and choose Product Research. You use your normal eBay login; there is no separate Seller Hub username or password.

Is Terapeak Product Research free?

Yes. Product Research is available to sellers with access to Seller Hub without requiring a paid eBay Store subscription.

Is Sourcing Insights free?

There is no separate Sourcing Insights add-on fee for qualifying business sellers, but access requires a paid Basic Store subscription or higher.

How far back does eBay Product Research go?

Product Research provides up to three years of eBay sales data. The desktop interface offers preset ranges from 7 days to 3 years, plus a Custom option within the available history.

What is a good Terapeak sell-through rate?

eBay does not publish one percentage that works as a universal benchmark. Read sell-through together with sold prices, seller count, competition, shipping, and the type of product you are researching. The metric is displayed only for searches covering items sold within the previous 90 days.

Does Terapeak show active eBay listings?

Yes. Product Research has separate Sold and Active views. Active results include current listing-price and competition data such as average listing price, total active listings, and promoted listings.

Is Product Research better than eBay Sold Items search?

Product Research is the stronger option when you need more than a quick comparable-sale check. It adds longer history, accepted Best Offer prices, and market-level metrics, while regular Sold Items search is still handy for a fast look at recent sales.

Final Thoughts

Knowing how to use Terapeak for eBay in 2026 means knowing how to use Product Research inside Seller Hub.

Start with a precise search. Remove listings that do not match the item you are evaluating. Then compare sold prices, demand, competition, shipping, seller count, and the longer sales trend before making a sourcing or pricing decision.

Sourcing Insights can help you find broader category opportunities, while Product Research is better for validating specific products. Neither tool replaces a margin calculation or a review of your real operating costs.

The strongest use of Terapeak for eBay is not finding one “magic” metric. It is building a cleaner picture of the market before you spend money on inventory or publish a listing.