Product research bol: find winning products in 2026

Product research bol: find winning products in 2026

Want to sell successfully on bol? It all starts with one step: solid product research. Not based on gut feeling, not based on what seems to be trending — but on data. Sellers who approach their product research systematically perform an average of 30–50% better than sellers who operate on intuition.

In this step-by-step guide you will learn exactly how to approach product research on bol, which criteria to use when evaluating products, which mistakes to avoid, and how Rylee supports you at every point.

What is product research?

Product research is the systematic analysis of products before you purchase them and list them on bol. You map out consumer demand, analyse the competition, calculate margins and determine whether there is realistic space for a new seller.

The big misconception is that product research is about finding a popular product. In reality, it is a risk and profitability analysis. The central question is not "what sells a lot?" but: "what can I sell profitably, with manageable risk, in a market where I have room to compete?"

Product research is always the first step in your selling process — before you contact suppliers, create a listing or purchase inventory.

Why is product research on bol so difficult?

Bol carries an estimated 30 million+ articles and more than 50,000 active sellers. That enormous supply reflects the enormous demand on the platform — but it also makes good product research challenging. You not only need to find a product that sells; you need to be able to stand out from all other sellers.

Manually tracking the market is no longer feasible. Without data on search volume, sales history and competition levels, you're making decisions in the dark. That is precisely why a solid product research tool is indispensable.

Step-by-step guide to product research on bol

Step 1: filter categories and find your niche

The first step in product research is not searching for a specific product — it is choosing a category that suits you and offers opportunities. Bol has dozens of product categories, but not all are equally accessible for new sellers.

Be cautious with:

• Electronics — higher risk of defects and complex warranty obligations

• Books and music — copyright makes this difficult for third parties

• Chemical products, beverages and baby products — strict CE requirements and DSA legislation

• Branded products — IP risk if you are not an official distributor

Accessible categories for starters: Think toys, office and school supplies, kitchen items, home goods and sports & outdoor. Manageable price range, straightforward regulations, stable demand throughout the year.

How Rylee helps: With Rylee's Chrome extension you can rapidly browse through bol categories. Directly on the search results page you see keyword analytics, Views per Listing (VPL), related keywords and page statistics — without switching tabs. Found an interesting category? Add all products from that page to your personal Tracker in one click.

Step 2: assess product properties

Once you've found an interesting category, filter individual products on their properties. Not every product that sells well is also good to sell. Size, weight and product type directly determine your costs and risk.

What to take into account:

How Rylee helps: Rylee's LVB box size checker shows you exactly which package class your product falls into and what that means for your fulfilment costs — before you spend a single euro.

Step 3: choose the right price and calculate your profit margin

Price is the first thing customers see and one of the biggest factors in bol's buy block algorithm. But a low price without a healthy margin is not a strategy — it is a recipe for losses.

The sweet spot on bol: €20–€50. Products in this price range are impulse purchases for many buyers. More expensive products require more comparison and convincing; cheaper products often leave too little margin.

Many sellers get it wrong with high-revenue products. They sell a lot, but very little is left at the bottom line. All costs you need to factor in:

• Purchase price (including freight and import duties)

• Bol commission (average 8–15%, depending on category)

• Shipping costs or LvB fulfilment costs

• Packaging materials

• Return rate (average 5–15%)

• Advertising costs (sponsored products)

Aim for a net margin of at least 25–30% after all costs.

How Rylee helps: Rylee's profit calculator automatically calculates all costs based on your purchase price, selling price and category. Immediately visible: whether a product is profitable enough to sell. Also read this blog on how to win the buy block beyond just price.

Step 4: analyse sales and competition

The holy grail of product research on bol: high demand, limited strong supply. But how do you spot it? By analysing the sales data of existing sellers.

Look at competitors appearing on the first page for:

• Their sales volumes and sales trend over the past months

• Price movements and whether new entrants are creating price pressure

• Listing history: have they recently changed their price or description?

• Whether they are priced competitively based on price stars

Also note: if a competitor sells a lot but has many negative reviews, that is exactly your opportunity. You can offer a better product or a better experience and take market share. Conversely, products with good reviews prove there is a real market — they are not untouchable; they are evidence the category works.

How Rylee helps: With Rylee's product tracker you can track unlimited products. You gain insight into revenue, stock levels, average sales, price movements and listing history. The database contains more than 4 million products with years of historical data.

Step 5: check search volume

Competitor sales data tells you what is being sold right now. Search volume tells you what is being demanded — including opportunities for products that are barely offered on bol yet.

In addition to bol search volumes, it is also useful to check Google Trends. Perhaps a product is not yet on bol, but online demand is already clearly there. That is an early signal worth investigating.

Use search volume for your listings too: high-volume keywords incorporated into your product title and description directly improve your visibility. Replace low-scoring keywords with higher-volume alternatives to rank higher in bol search results.

How Rylee helps: Rylee's keyword database gives you up-to-date bol search volumes for both the Netherlands and Belgium, including related search queries and trend development. You see not only how popular a term is, but also whether that popularity is growing or declining — essential for avoiding products that are on the way down.

Step 6: assess profitability and find your supplier

Found a product that passes the margin test? The next question is: where do you source it and at what price? Purchase price determines your margin more than any other single factor.

Via Alibaba or AliExpress — lower purchase price per unit, higher minimum order quantities, longer lead times. Suitable for private label once you have validated the concept.

Via European wholesalers — shorter lead times, lower entry threshold. Higher purchase price, but ideal for quick testing without a major investment.

Via local suppliers — higher margin possible for unique or sustainable products with a distinctive story.

How Rylee helps: Rylee has a find supplier function built into the product database, tracker and Chrome extension. With one click you see what this product — or a comparable one — costs at suppliers, directly within your product research workflow.

Step 7: analyse reviews to find opportunities

Competitor reviews are a goldmine for product research. They tell you exactly what customers are missing, what is going wrong and where you can differentiate — without spending a single euro yourself.

What to look for:

• Recurring complaints about quality, packaging or instructions

• Customers mentioning a variant that is not available (different size, colour, bundle)

• Low scores on specific points that you can address

Analyse the content and adjust your product whenever you see feedback points come up repeatedly. This way you listen to the market before you enter it.

How Rylee helps: Rylee's review analyser automatically summarises a hundred reviews based on the most important pros and cons. What would otherwise take hours takes five seconds.

The most common mistakes in product research on bol

1. Only looking at bestsellers The top 10 on bol has the most competition and the most price pressure. More interesting are products at positions 20–50: enough demand, but less saturated. Rylee lets you add any product on bol to your research — not just the most visible ones.

2. Not doing a full profit calculation Only looking at the selling price without factoring in commission, shipping costs, return costs and advertising spend. Result: products appear profitable but are not.

3. Misjudging the competition Only counting the number of sellers without looking at dominant brands, bol itself as a seller, or structural price pressure in the category. Result: you end up in a "price war category" where you cannot win.

4. Not checking search volume Choosing products based on gut feeling without data on search volume, trend direction and conversion intent. Result: products without real demand, or temporary hypes without scalability.

5. Choosing overly complex or risky products Electronics without technical knowledge, products requiring CE certification or with a high return rate. Result: risk of listing blocks, high return costs, low margins.

6. Choosing emotionally instead of data-driven "I think this product is clever" or "I would buy this myself" is not market research. You are not the target audience.

7. No differentiation Launching exactly the same product as the competition with no unique angle — better bundling, packaging or niche targeting. Result: pure price competition, disappearing margins.

8. Following trends too late Entering a market when a hype has already peaked. You buy at the top and sell during the decline.

9. Ignoring platform rules Prohibited products, sensitive categories or misuse of brand names can lead to listing removal — or in serious cases: account issues.

10. Ordering large quantities without testing first Placing a large order without first running a small test batch. Result: cash flow risk and stuck inventory.

The most important insight: people do product research as if it were about "finding a popular product", when in reality it should be a risk and profitability analysis. Bad product research is not about choosing the wrong product — it is about using the wrong criteria.

Checklist: is this a good product for bol?

✅ Selling price between €20 and €50
✅ Weight under 3 kg
✅ Small size (fits standard bol pick bin)
✅ Stable demand throughout the year
✅ No CE certification or complex regulations required
✅ Not dependent on a single supplier
✅ Room for improvement based on competitor reviews
✅ At least 25% net margin after all costs
✅ Fewer than 5–8 strong competitors with many reviews
✅ Stable or growing search volume on bol

Frequently asked questions about product research on bol

What is product research on bol? Product research on bol is the systematic analysis of products before purchasing them. You research demand (search volume), supply (competition and sales data), profit margin and risk. The goal: find a product with high demand, limited strong competition and a healthy net margin.

How long does product research on bol take? With the right tools you can analyse a product category in 1 to 2 hours. Without tools the same analysis is barely feasible — sales data, search volumes and historical trends are not manually available on bol.

What tools do you need for product research on bol? Rylee provides a complete toolkit: a product database with 4+ million products, a keyword database with up-to-date bol search volumes for the Netherlands and Belgium, a profit calculator, a product tracker, a Chrome extension and a review analyser.

What is a good net margin for a bol product? Aim for at least 25–30% net margin after deducting purchase price, bol commission, shipping costs, packaging and return costs. Use Rylee's profit calculator to calculate this quickly.

Should I include Belgian demand in my product research? Yes. Bol is active in both the Netherlands and Belgium. Rylee shows search volumes for both markets separately, giving you a complete picture of total market size.

How do I know if a niche has too much competition? If there are more than 5–8 sellers with more than 50–100 reviews per listing, the market is generally difficult to enter as a new seller. But also look qualitatively: are their listings well-optimised? Are the reviews positive? Are there complaints you can solve?

Ready to take action?

With Rylee you have access to all the data you need to do product research on bol quickly and reliably. From search volumes and sales data to profit calculator and review analyser — everything is in one platform.

Rylee is the #1 product research tool for bol sellers with the most extensive product database and unlimited product tracking. Start your free 14-day trial here.