Shelves of Babel
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INTELLIGENCE FOR THE INFINITE SHELF

The search results page is the shelf.Know your share. Act on the opportunities.

Shelves of Babel measures your share of the shelf, records every move that changes it, and learns which moves matter: the threats and the openings, weeks before they show up in sales.

Start free · first data in minutesBrowse the live demo
3 keywords free forever · no credit card · no seller account connection required
protein powder · share of shelf · loading the live view
connecting…
★ Optimum Nutrition
13.4
Dymatize
9.5
Premier
8.5
Orgain
6.3
MuscleTech
7.1
Body F.
5.1
Ghost
4.2
Vega
4.3
Long tail · everyone else
34.6
★ = your brand · every brand resolved from raw search results, deduplicated and canonicalized automatically
LIVE DEMO
Browse a real account
For the next few minutes, you’re Optimum Nutrition, tracking the protein market on Amazon across three shelves. Every number is real, scraped daily. Click anything: switch shelves, flip lenses, investigate a competitor.
app.shelvesofbabel.com · demo account
Make it yours. Start free
THE PART YOU CAN’T SEE
Right now, you’re a bar on someone else’s chart.
Every day, your position on the shelf shifts: a competitor cuts price, flips to 4.5 stars, swaps its hero image. The share moves weeks before the sales report shows it.
Most brands find out in the quarterly review. By then the shelf has already been re-divided.
your shelf · 6 weeks ago
#2
11.2%
#3
▲ price cut + badge, 5 wks ago
9.8%
#4
← you, quietly passed
8.4%
With a shelf tracked, this is a Tuesday-morning alert, not a quarterly surprise.
HOW IT WORKS
Three steps to a market you can actually see
01
Define your shelf
The search results page is the shelf. Yours is any set of keywords: "protein powder" + "whey protein" is a market. Pick from our network map, or type your own.
02
We collect it on your cadence
First snapshot in minutes, then weekly, daily, or hourly. Every product resolved to a brand: positions, prices, ratings, badges, sponsored placements tracked separately.
03
See what moved
Share of shelf weighted by how shoppers actually scan the page, trends, movers, rank paths, price and review lenses; and every raw observation in a table, one click to CSV.
INFINITE SHELVES
Infinite shelves, finite opportunities
The catalog is endless; the ground you can win is not. A category number only means something if you compete across the whole category, and most brands don’t. You have a niche product, or a few SKUs in a corner of a huge category, so “share of Sports Nutrition” is mostly brands you’ll never line up against.
Cut the shelf down to where you actually show up: plant protein powder and its real neighbors. Build a shelf per pocket of selection you play in, track the broad market alongside it, and regroup any time. The data follows.
Brands and agencies alike: track any shelf. Yours, a client’s, or one you’re about to enter.
Shelf: Protein Powder · the broad market
your share: 14.2% · rank #1 of 54
Shelf: Plant Protein · same data, your niche
your share: 8.7% · rank #3 of 47 · a different fight
illustration · the live demo above has the real numbers
WHO IT’S FOR
A shelf is just keywords. Whose fight is it?
BRANDS
Defend your shelf
Watch your share daily, catch the competitor move the week it happens, not the quarter it shows up in sales.
AGENCIES
Track every client
No client credentials needed. One account, a shelf per client, read-only dashboards you can share in the Monday deck.
For the people who run the accounts →
OPERATORS & AGGREGATORS
Scout before you buy
Size a category's concentration and churn before you enter it. Track markets you don't sell in yet.
ANALYSTS & RESEARCHERS
Cite real shelf data
Public shelves, CSV export of every observation, transparent methodology. Data you can put in print.
EVERY LENS ON ONE SHELF
One shelf, eight ways to read it
▦
Share of Shelf
The headline number: weighted share by brand, trend, movers, new entrants.
▤
Rank Grid
Every ASIN’s daily rank on every keyword, color-banded.
$
Prices
Price vs. share across the shelf: who wins at which price point.
★
Reviews
Quality quadrant: fortresses, emerging threats, vulnerable incumbents.
≡
Data
Every raw observation in a filterable table. One click to CSV.
▥
Dashboards
Ten widget types, arranged your way. Saved, shareable, per-widget configured.
⬡
Shelf Explorer
Map a market’s keyword neighborhood from real search demand. Lasso a cluster, track it.
◫
Compare Shelves
Your position across every shelf you track: defend, attack, monitor.
MORNING CHECK-IN
The morning number, in your pocket
Every shelf, every morning: share, movers, and who to watch, over coffee. Building and deep analysis stay on desktop; your phone is for knowing the number moved before anyone else does.
PRICING
Priced like a utility. Because it is one.
Free
$0/forever
a real seat, not a demo
✓3 tracked keywords · daily collection · forever
✓Every lens, shelf, and weighting tool
✓Browse our public shelves · live, full history
Start free · no card
THE METER
Pay as you track
$10.00/mo
15 keywords
weeklydailyhourlyunder the $10/mo minimum
1.5¢ per snapshot · page 1 · from $10/mo or $99/yr
✓Every keyword configurable: weekly, daily, or hourly · 1–3 pages deep
✓Unlimited shelves, seats, dashboards, weightings & exports
✓Set a spend cap · change anything, prorated
Start free, upgrade when ready
weekly $0.06/kw/mo
daily $0.45/kw/mo
hourly $10.80/kw/mo
per page tracked · the whole price list, no quote calls
You pay for collection. Everything else is free · cancel anytime, keep your history
SHELVES OF BABEL
ANALYTICS SUITES
Starting price
✓$0 · paid from $10/mo
$99–500+/mo
Pricing
✓Full price list, on this page
Quote calls, annual contracts
Seller account
✓Never connected
Often required
Time to first data
✓Minutes
Onboarding calls
Seats · dashboards · exports
✓Unlimited, included
Per-seat, add-ons
“Analytics suites” = the multi-tool platforms shelf tracking usually comes bundled inside. Great products, different job.
NOT READY TO SIGN UP?
Get one shelf snapshot, free. No account.

Type any Amazon search term. We’ll scrape page one right now and email you who holds the shelf, brand by brand, to the decimal. Usually takes about a minute.

One-time email with your report link. No list, no follow-ups unless you check the box. Limit 3 per day.
FAQ
How is "share of shelf" calculated?
−
We scrape your shelf’s keywords daily, attribute a weighted share to each search position (you choose the weighting curve), resolve every product to a canonical brand, and sum by brand. Organic and sponsored placements are tracked separately; view either, or both.
Do I need to connect my Amazon account?
+
Is this only for Amazon?
+
Can I track competitors or markets I don’t sell in?
+
How fresh is the data?
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How is this different from Helium 10, DataHawk, or Stackline?
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I run an agency. Can I track shelves for clients?
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What happens if I cancel?
+
What’s with the name?
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Your shelf is moving right now.
Set it up in two minutes. First numbers before you finish your coffee.
Start free
No credit card to start·No seller account connection·Cancel anytime, keep your history
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