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See what your BSR is really telling you

Track main and subcategory BSR for every ASIN across 21 marketplaces. Daily history and trend averages Seller Central doesn't offer.

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Nova BSR Tracker dashboard showing ASIN-level Best Sellers Rank with main and subcategory positions

A rank without history is just a number

A single rank snapshot tells you nothing. Without daily tracking, you can't tell if you're gaining ground or losing it.

01

You check BSR manually and miss the patterns

Opening Seller Central product pages one by one catches a snapshot, not a trend. By the time you notice a rank drop, it's been sliding for weeks.

02

A sales spike doesn't mean you're winning

If the whole category grew 30% and you grew 15%, your BSR got worse. Without rank context alongside sales, you can't tell momentum from a rising tide.

03

Subcategory ranks tell a different story

Your main category BSR can hold steady at #2,000 while your subcategory position drops from #8 to #25. The subcategory is where your actual competitors live. Ignoring it means missing the competitive signals closest to your product.

04

No historical view means no context

Is #1,500 in Kitchen & Dining good? Without 30-day and 90-day averages, every BSR number floats in a vacuum.

Rank data that builds over time

From daily snapshots to 90-day averages. Nova connects your BSR data with sales and profitability so rank numbers actually mean something.

Nova BSR historical trends showing rank changes and moving averages over time
Nova multi-marketplace BSR view showing rank comparison across Amazon regions

21

Marketplaces

BSR tracked across every Amazon region

ASIN

Level Tracking

Main + subcategory rank per product

Daily

BSR History

Snapshots building 7D/30D/90D averages

2

Rank Types

Main category and subcategory BSR

How it works

From setup to BSR visibility in under 5 minutes.

1

Connect Your Seller Central Account

Link through Amazon's official SP-API. Nova automatically identifies every ASIN in your catalog and starts pulling BSR data for main and subcategories.

2

Nova Pulls BSR Data Daily

Every morning, Nova captures a BSR snapshot for every product. Over time, this builds into 7-day, 30-day, and 90-day trend averages you can use for analysis.

3

Monitor Rank Shifts Over Time

See which products are gaining or losing rank. Compare BSR trends across periods, filter by marketplace, and connect rank changes to your sales and profitability data.

BSR in the same view as Units, Sales and Net Profit

Stop bouncing between tools. Read rank, demand and margin in the same row, then open any SKU to compare rank across every marketplace it ships in. See the full setup on the BSR tracker page.

Nova SKU-level table with Best Seller Rank column next to Units, Sales, Buy Box %, Net Profit and Sessions

BSR inside the SKU table, sortable next to Units, Sales and Net Profit.

Nova Best Seller Rank by marketplace modal showing rank, prior-period rank and variation per Amazon marketplace

Open any SKU for rank across the 21 Amazon marketplaces.

Nova vs Seller Central vs manual tracking

What you actually get for BSR visibility with each approach.

CapabilitySeller CentralManualNova
ASIN-level BSR✓ One product at a time✗ Copy-paste into spreadsheet✓ Entire catalog at once
Subcategory tracking✓ Visible on product page✗ Must find manually per ASIN✓ Main + sub tracked automatically
Historical trends✗ Current rank only✗ Only if you log it daily✓ Full history from day one
7D/30D/90D averages✗ Not available✗ Requires manual calculation✓ Calculated automatically
Multi-marketplace view✗ Separate dashboards✗ Multiple spreadsheets✓ 21 marketplaces unified
Period-over-period comparison✗ No comparison✗ Pivot table gymnastics✓ Any date range, instant delta
Connected to sales/P&L data✗ Separate reports✗ Separate data sources✓ BSR alongside revenue and margins

Built for sellers who compete on rank

If your category position drives your business, your BSR data should be more than a number you glance at.

Brand Managers Tracking Category Position

You're launching new products, running promotions, and adjusting pricing. BSR trends tell you whether those moves are working relative to the category, not just in absolute sales numbers.

  • Measure launch success with BSR trajectory
  • Track seasonal rank patterns across years
  • Compare subcategory position across marketplaces
Learn more →

Portfolio Operators Comparing ASIN Performance

You manage dozens or hundreds of ASINs across multiple brands. You need to know which products are gaining rank and which are slipping, without checking each one manually.

  • Spot rank gainers and losers across the portfolio
  • Compare BSR trends across marketplaces
  • Connect rank shifts to revenue changes
Learn more →

Agencies Reporting Competitive Positioning

Your clients want to know where their products stand. BSR trend reports with 30-day and 90-day averages give you a clear story about category position that goes beyond raw sales numbers.

  • Export BSR trend data for client reports
  • Show category position improvements over time
  • Compare rank across client portfolios
Learn more →

What is Amazon Best Sellers Rank?

Amazon Best Sellers Rank (BSR) is a numerical ranking assigned to every product on Amazon based on its sales velocity relative to other products in the same category. A product ranked #1 in its category has the highest recent sales volume. BSR updates hourly on Amazon, reflecting both recent orders and historical sales patterns.

Every product has at least two BSR values: a main category rank (e.g., #3,400 in Health & Household) and one or more subcategory ranks (e.g., #12 in Vitamin D Supplements). The subcategory rank is often more useful because it compares your product against a tighter competitive set. A product can be #5,000 in its main category but #3 in its subcategory.

BSR tracking means capturing these rank positions daily and building trend data over time. Without historical data, a BSR number has no context. Is #2,000 good for your product? You can only answer that if you know it was #3,500 last month and #1,800 last week. Nova automates this by pulling BSR for every ASIN across 21 marketplaces, building 7-day, 30-day, and 90-day averages so you always have the full picture.

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BSR Tracking: FAQ

Common questions about tracking Amazon Best Sellers Rank with Nova.

Best Sellers Rank is Amazon's ranking of every product within its category based on recent and historical sales velocity. Every ASIN gets a main category BSR (e.g., #1,245 in Kitchen & Dining) and one or more subcategory BSRs (e.g., #12 in Coffee Grinders). BSR updates hourly on Amazon, and a lower number means higher sales velocity relative to other products in the same category.
Nova pulls BSR data daily through Amazon's SP-API. While Amazon updates BSR hourly, Nova captures a daily snapshot for every ASIN in your catalog. This gives you consistent trend data without the noise of intraday fluctuations, which can be misleading for decision-making.
Yes. Nova tracks BSR for both the main category and all subcategories assigned to each ASIN. This matters because your main category BSR can look stable while your subcategory position shifts significantly. Subcategory BSR is often a more actionable signal because you're compared against a tighter competitive set.
Nova stores BSR history from the day you connect your account. Over time, you build 7-day, 30-day, and 90-day trend averages for every ASIN. There's no cap on historical storage. The longer you track, the richer your trend data becomes for seasonal analysis and launch performance reviews.
Yes. Nova pulls BSR data across all 21 supported Amazon marketplaces. You can compare how the same product ranks in the US vs UK vs Germany without switching between Seller Central accounts. This is particularly useful for sellers expanding into new regions who want to benchmark ranking performance.
No. Nova tracks your actual BSR positions and trends, not estimated sales. BSR-to-sales calculators rely on assumptions about category size that can be wildly inaccurate. Instead, Nova connects your BSR data to your actual sales figures so you can see how rank changes correlate with real revenue, not guesses.
BSR sits alongside your P&L data, sales trends, and PPC spend in the same dashboard. When you see a BSR improvement, you can immediately check whether it came from organic growth or increased ad spend. That context is what turns a rank number into a business decision.

Stop guessing where you rank.

Connect your Amazon account in 5 minutes. See every BSR position, every trend, every marketplace.