The largest and cheapest bol tracker
See sales, revenue, prices and keywords for more than 7 million bol products instantly. Updated daily, no waiting for your data.
Starting from just € 29 per month
What is a bol tracker?
A bol tracker shows how products perform on bol.com: how much they sell, what they turn over, how their price and reviews develop and which keywords they are found on. Bol only gives you those numbers for your own products. With MarktMentor's tracker you also see them for competitors and for products you are thinking of buying in.
- Sales and revenue per day, with history from May 2024
- Price, reviews and the number of sellers per product
- Keywords and positions, including your competitors'
- Right on bol.com via the Chrome extension
More than 20,000 businesses already trust us

























How Lifegoods uses MarktMentor for revenue growth and competitor analysis Read our case study
MarktMentor vs other Product Trackers
Why MarktMentor?
The difference between MarktMentor and other parties is that our sales and revenue data is more reliable, cheaper and immediately available.

How does MarktMentor's Product Tracker work?
MarktMentor estimates the sales of all relevant products on bol.com based on a self-developed algorithm. This has been tested on tens of thousands of products, showing that MarktMentor's Product Tracker has a maximum margin of error of 25% for 80% of products.
How does the Product Tracker work at other companies?
They do this based on the shopping cart method. They look at inventory differences over time for products and determine sales based on that. This method is very error-prone, provides unreliable data and often takes time before you have sales information for products. This is because:
- Waiting for data You have to specify which products you want to track yourself. This means you have to wait a month before you have a month of data.
- Stock above 500 It's not possible to estimate sales of products with stock above 500 this way, because you can only see a maximum of 500 stock on bol.com.
- Stock replenishment If the stock is replenished in the meantime, the numbers won't be accurate.
- Sales outside bol.com If the product is sold in different places via the same inventory system, the stock on bol.com will also decrease when the product is sold elsewhere. This can result in huge sales numbers being incorrectly measured for bol.com.
How can MarktMentor be better AND cheaper?
We have worked hard over the past years to develop our own algorithms for determining sales and revenue on bol.com. These algorithms are often more accurate than the shopping cart method and are relatively cheap to maintain, while the shopping cart method requires a lot of server capacity and is more expensive to maintain.
Everything you need directly on bol.com
How can I see this data?
See all important information instantly while browsing bol.com with our Chrome Extension.

- All relevant products
- Get access to the largest bol.com product database with more than 7 million products.
- Search trends
- View search trends for all keywords on bol.com
- Search volumes
- View search volumes for all keywords on bol.com.
- Sales data
- Analyze the monthly, quarterly and annual sales of all relevant products on bol.com
- Revenue data
- Analyze the monthly, quarterly and annual revenue of all relevant products on bol.com
- Reliable
- The data has been tested on tens of thousands of products to deliver the most accurate bol.com data in the Benelux.
