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Amazon BSR tracker that puts every rank next to the sales behind it

Best Sellers Rank shows how a product sells compared with others in its category. Nova records it every day for each of your products and marketplaces, in the same table as your units, sessions and conversion.

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Amazon BSR tracker table with main category and subcategory Best Sellers Rank for each product, next to units, sessions and conversion rate with week-over-week change

Loved by Amazon sellers worldwide

Verified 5-star reviews on Trustpilot and Reddit.

Fantastic data share for Amazon agencies

“Nova has become a core part of how we run our Amazon agency. Data Share puts clean, structured Amazon data straight into our own stack, so we no longer maintain those pipelines ourselves. The hourly updates mean we spot changes during the day instead of managing accounts on yesterday's data.”

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Stephen Harris

Sitruna, UK agency managing 100+ Amazon accounts

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The P&L view captures everything Amazon-related

“The P&L view is the big one. It captures everything Amazon-related with the granularity to track down every unexpected expense, giving me a real profit statement I can run the business off of. No more guessing margins or waiting for end-of-month reconciliation.”

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Yano

Bender Brands

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Exactly the kind of tool e-commerce needed

“Nova is exactly the kind of tool the e-commerce industry has needed for a while. Fast-moving, responsive, and adding value to every Amazon business at every turn. The team is always open to hearing feedback and new ideas.”

A great team to work with

“We had a great experience working with the Nova team. They were incredibly responsive, helpful and professional, and truly committed to improving the tool in ways that made it both simple and genuinely useful. It felt like they were invested in our success.”

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Jessica Christensen

US
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Just go for it. You won't regret it

“The Nova team has built something truly special. The days of clunky Looker Studio dashboards are over. They are communicative and collaborative, and work hard to make the platform as helpful as possible for their users.”

Nova is great

“Nova keeps us up to date across all of our client accounts and provides a unique set of analytics. The data is live, which lets us make quick decisions faster than with other tools. The events feature is excellent for logging listing changes and running lift tests.”

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Alexandr Kachurovskyi

DE
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Replaced hours of reporting with one dashboard

“I manage multiple brands and Cockpit, P&L and Day-to-Day are now part of my daily workflow. What used to take hours across multiple tools I now see in one place. Antoine and Maxime are clearly building this with real seller challenges in mind, and they listen.”

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Jake Zaratsian

US
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Top notch customer support

“The team is genuinely responsive; they actually listen to concerns and implement suggestions into the tool, which is a big part of what makes it so powerful. The UI is clean and managing multiple accounts across marketplaces finally feels organized.”

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Angelo Raymundo

PH
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A dependable solution for Amazon sellers

“We use Nova to manage and analyze our Amazon marketplace data across multiple accounts and regions. Clean interface, useful business insights, and strong visibility into KPIs. Support is proactive and continuous improvements keep landing. Highly recommended.”

Ashish Chaudhary

IN
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A robust instrument with competitive pricing

“After a couple of months on Nova, the platform delivers outstanding value. As an agency managing a diverse portfolio of sellers, Nova made onboarding and overseeing multiple merchant accounts effortless. The data centralization streamlined our day-to-day.”

Pavel Zadorozhnyi

ES
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Highly recommended

“Running an agency that manages a large portfolio of Amazon brands, what we value most is the people. Nova has been a real partner from day one, adapting to how we work. Multi-store management sits in one clean place and the team actually listens to feedback.”

Nova has made tracking our Amazon profit easier

“Nova has made tracking our Amazon profit and performance so much easier. The near real-time data updates mean we're not stuck working off yesterday's numbers, and it's saved us a lot of manual spreadsheet work. Support has been quick and helpful whenever we've had questions.”

Mark Fleming

PT
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Sophisticated tools, transparent data, and responsive support

“We partnered with Nova for our agency's performance reporting and it has been excellent. The platform is comprehensive and sophisticated without being overcomplicated, and we appreciate how accurate and transparent the underlying data sources are. Questions get answered quickly, even for custom requests.”

How the Nova Amazon BSR tracker works

  1. Subcategory
Categories

Main and subcategory rank, side by side

Each child ASIN shows its main category rank and its subcategory rank, with both category names. The subcategory compares you with closer competitors, so it is usually the more useful number to follow.

Best Sellers Rank by product with main category rank such as Health & Household and subcategory rank such as Multivitamins or Dog Hip & Joint Care
  1. Main category rank
  2. Subcategory rank, with its name
  1. Trend
History

Click a rank to see its history

A rank opens its value in each marketplace, this week and last week, and a daily chart over 30, 90 or 180 days.

Amazon Best Sellers Rank history chart for one product on amazon.com in Health & Household over 90 days with daily rank changes

New to Best Sellers Rank? Start with how Amazon BSR works, then read rank next to profit per SKU.

  1. Why it moved
Ask it instead

Ask Claude or ChatGPT which ranks dropped

Example

Which products lost the most subcategory rank this month?

ProductRank now30 days ago
Creatine powder#484#274
Vitamin B12 spray#346#251
Plant protein#52#21

Example

Did the creatine powder sell less, or did the category move?

MetricLast weekChange
Units46-12%
Sessions269+2%
Conversion14.1%-5.6 pts

What it can read

  • Main and subcategory rank per marketplace, latest or as a daily to yearly series
  • Rank change against any earlier window
  • Units, sessions, conversion, Buy Box and profit for the same products

What it can write back

  • Product tags, to compare ranks by brand or range
  • Cost of goods, so profit sits next to rank
  • Every write shows a preview you confirm first

Seller Central vs a browser extension vs Nova

Seller Central shows the current rank on each listing. Browser extensions add history, one product page at a time.

Seller CentralA browser extensionNova
Every product's rank in one tableOne listing at a timeOne product page at a timeEvery product, every marketplace
Rank historyCurrent rank onlyYes, per product page30, 90 and 180 days
Rank next to your units, sessions and profitNoNoSame row
Rank change this week against last weekNoRead off a chartPer marketplace, with the change
Ask an AI assistant which ranks slippedNoNoClaude, ChatGPT, Gemini and Copilot Studio

Amazon BSR glossary

Read the definitions
Best Sellers Rank (BSR)
Amazon's ranking of a product by recent and historical sales within a category.
Main category rank
A product's rank in its top-level category, such as Health & Household.
Subcategory rank
A product's rank in a narrower category, such as Multivitamins.
Rank history
The daily record of a product's rank over time.
Rank change
The difference between this period's rank and an earlier period's rank.
Sessions
Visits to a product's detail page over the period.
Conversion rate
The share of sessions that ended in a purchase.
Buy Box percentage
The share of page views where your offer held the Buy Box.
Child ASIN
One variation of a product, such as a size or flavour.

Track your ranks next to your sales

Connect your Amazon account and Nova starts recording each product's rank next to its sales. From $49/mo. 14-day free trial, no card required.

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