Terapeak: what it is and how to check demand on eBay (2026 guide)

That’s exactly why sellers and eBay account management specialists have been turning to Terapeak for years. There’s a catch, though: if you type ‘Terapeak’ into Seller Hub today, you may be in for a surprise. Officially, the name hasn’t existed since May 2024. The tool has been renamed, but the feature has only disappeared in name, not from the platform. If you want to know what happened to it, what it’s called now and how to actually use it so you’re not guessing what to sell on eBay, read on.

What is Terapeak and is the name still used on eBay?

Terapeak is a market research tool built into eBay that shows the real prices of sold listings and the demand for a given product. The short answer to the question in the heading: officially, the name hasn’t existed since May 2024. eBay rebranded Terapeak as Product Research and tucked it away in Seller Hub, under the Research tab.

Only the label has changed, not the function. The data you used to get under the Terapeak brand (sold prices, sell-through rate, seasonal trends) is exactly the same today, just under a different banner. Seasoned sellers still say ‘look it up on Terapeak’ anyway, because habits change more slowly than product names. It’s a bit like Twitter, which is officially ‘X’ now, yet half the internet still says ‘I tweeted it’. Old names die hard.

Where can you find Terapeak (Product Research) in Seller Hub?

You’ll find Product Research in Seller Hub, under the Research tab, listed as ‘Product Research’. On a computer, you sign in to your eBay account, go to Seller Hub, click the Research tab and choose Product Research from the list of tools.

New in 2026: the tool is no longer limited to desktop. You also get full access to Product Research in the eBay mobile app, under the Selling tab, in the Seller Tools section.

What data does Terapeak show about sales on eBay?

Product Research (formerly Terapeak) shows data from sold and active listings going back 2–3 years, far more than eBay’s standard search, which only covers the last 90 days. That’s the tool’s real advantage.

Product Research draws on data from 2–3 years, while eBay’s standard search only goes back 90 days.

In the report you’ll see, among other things: the number of units sold in a given period, the average and highest selling price, the number of active competitor listings and, importantly, the price actually accepted on Best Offer listings, which a regular eBay search doesn’t show at all. Many sellers only look at a competitor’s asking price and wrongly assume that’s what the competitor actually gets for the product. In reality, the accepted price can be as much as 20–30% lower.

The longer the period you analyse, the more clearly you can see whether demand is steady or seasonal, which matters especially for festive or weather-dependent products.

How do you check demand for a product in Terapeak, step by step?

Checking demand for a specific product in Product Research takes less time than making a cup of coffee. The whole process comes down to a few steps you can repeat every time you’re considering adding a new product to your range.

1. Sign in to your eBay seller account and go to Seller Hub.
2. Click the Research tab, then select Product Research.
3. Enter the product name or catalogue number (the more precise you are, the cleaner the data).
4. Set the date range to the longest period available so you see the full trend, not just a snapshot.
5. Check the sell-through rate, average selling price and number of active competitor listings.
6. Save the results and compare them with the cost of buying the stock and eBay’s fees before you make a decision.

Terapeak vs Google Trends, Jungle Scout and Helium 10 – what’s the difference?

The key difference: Terapeak (Product Research) shows data only from transactions that actually took place on eBay. Google Trends, Jungle Scout and Helium 10 work differently and mostly relate to a different platform, chiefly Amazon.

Google Trends shows how popular search terms are across the whole of Google, not transactions, so it’s good for spotting seasonal trends but won’t tell you how much you’ll actually earn. Jungle Scout and Helium 10, meanwhile, are tools built for Amazon and analyse sales data there, but they have no insight into what’s happening on eBay.

If you sell on eBay or plan to, Product Research is the source closest to the truth, because the data comes straight from the platform rather than from a third-party provider’s estimates. A good multichannel strategy often combines several of these tools at once, as each one tells you about a different market.

Is Terapeak free?

Yes. Product Research (formerly Terapeak) is included in every eBay seller account, whether you have a basic account or a paid shop (Store). There’s no separate subscription or extra fee for access to the sales data.

It’s one of eBay’s underrated advantages over other platforms: while decent analytics tools for Amazon (Jungle Scout, Helium 10) typically cost tens of dollars a month, on eBay you get comparable insight into the data for free, built right into your seller dashboard. The problem isn’t the cost; it’s that most sellers simply never look there and make their sourcing decisions on gut feeling.

If you have an eBay account and haven’t yet looked at the Research tab in Seller Hub, the only cost you’re paying right now is, quite literally, lost time.

Is Terapeak data enough to decide what to sell on eBay?

No. Product Research data answers the question of ‘whether anyone is buying this and for how much’, but not ‘whether you’ll make money from it’. And that’s a completely different calculation.

A high sell-through rate and a good selling price mean nothing if, after deducting eBay’s final value fees, delivery costs, return costs and the purchase price of the stock, you’re left with a margin of just a few per cent. At Raise Your Sales, we regularly see this with clients who enter a new market armed with great demand data but without having worked out their real profitability: sales go up, yet the account still loses money.

Product Research is a good first filter, not the final decision. A proper assessment of a product’s potential means weighing demand against the full cost structure and price competition in that market, not just against a nice-looking sales chart.

Summary

Terapeak is a name that has stayed in people’s heads longer than the product that carried it. What really matters isn’t the sign above the door but the data inside, and today that data is just as accessible as it was back when the tool went by another name. Demand for a product, though, is only ever half the equation. The other half is costs, margin and competition, which no analytics tool will work out for you automatically.

If you already have a list of products with a good sell-through rate and you’re wondering whether they’ll really put you in the black once you start selling on eBay, book a free consultation with Raise Your Sales. Together, we’ll check the real profitability before you invest in stock.