Listing Checker
Check a listing against Amazon's rules before Amazon does: title length and banned characters, repeated words, bullet rules, risky claims and the backend search term byte limit. Rules adapt to the marketplace you pick.
A link sets the marketplace automatically. ASIN lookups use Amazon's official Catalog API; backend search terms are private, so paste those below.
One click from any Amazon page
Drag this button to your bookmarks bar. On any Amazon product page, in any country, click it to load that listing here. No API needed, and the data goes straight to this page.
Check this listingCan't see the bookmarks bar? Press Ctrl+Shift+B (Cmd+Shift+B on Mac).
Listing score
Most used words (dark = in title)
Rules for this marketplace
Guide
What the checker looks for
Title
Max 200 characters, no word more than twice, none of ! $ ? _ { } ^ ¬ ¦, no promotional words, prices or emoji, no ALL-CAPS words. Key info in the first ~80 characters for mobile.
Bullets
5 bullets, each a specific benefit, under ~255 characters, no special symbols or emoji, no links/contact details, no sale or guarantee claims.
Backend search terms
Under the byte limit (250, or 500 on Amazon.co.jp), no repeats, nothing already in the title/bullets, no brand names, ASINs, subjective or temporary words, no commas needed.
Claims
Health, germ-killing and environmental claims need proof or registration, and the rules differ by country (EPA in the US, EU/UK green-claims rules, TGA in Australia).
How it differs by country
The rules above apply everywhere, but byte counts, language and claim rules change by marketplace. Pick the marketplace at the top; the checker's limits and notes switch with it.
| Marketplace | Language(s) | Search term limit | Currency |
|---|
Category style guides can be stricter (e.g. shorter titles in clothing). Check your category's style guide in Seller Central → Help.
Where to find your backend search terms
Seller Central → Inventory → Manage All Inventory → Edit on the product → Keywords tab → Search Terms. They're not shown on the product page, so a lookup by ASIN or the bookmark can't read them.