Amazon Backend Keywords - What They Are and How to Use Them

Amazon backend keywords are search terms that live behind the scenes of a listing — invisible to shoppers, but read directly by Amazon's search algorithm. Most sellers either leave this field mostly empty or fill it in a way that wastes the space entirely.

What Backend Keywords Actually Are

In Seller Central, every listing has a "Search Terms" field in the backend that isn't shown on the product page. It exists purely to catch relevant searches that don't fit naturally into your title, bullets, or description.

This gives you room to target keyword variations without cluttering the customer-facing copy with awkward, repeated phrasing.

What Belongs in the Backend Field

• 👉 Synonyms and alternate spellings not used in the visible listing

• 👉 Common misspellings buyers might search (used carefully, not excessively)

• 👉 Related terms that don't fit naturally into the title or bullets

Example: if your title uses "sneakers," the backend field is a good place for "trainers" or "athletic shoes" — terms some buyers search but that would feel repetitive if added to the visible copy too.

What to Leave Out

• ❌ Your own brand name — Amazon already indexes this automatically

• ❌ Competitor brand names — this violates Amazon's policies and can get a listing suppressed

• ❌ Keywords already used in the title or bullet points — repeating them here is wasted space

• ❌ Subjective claims like "best" or "amazing" — these aren't things people search for

How to Structure the Field Correctly

Amazon's backend search terms field has a character limit, and it's read differently than a typical keyword list — commas aren't necessary, and repeating words adds nothing.

• ✅ Use single spaces between terms, not commas

• ✅ Avoid repeating the same word in multiple phrases within the field

• ✅ Prioritize the most relevant, distinct terms first in case of space limits

Finding the Right Terms to Include

The backend field is only useful if it's filled with terms buyers are actually searching, not guesses. Running your product category through the Rankivo Keyword Research tool surfaces related terms and variations worth adding — the kind that are easy to miss when brainstorming alone.

Conclusion

amazon backend keywords are one of the easiest ranking opportunities to get wrong simply by leaving them blank or filling them with repeated, already-covered terms. Used correctly, they extend a listing's search reach without cluttering the customer-facing copy. For the full listing optimization framework, see our guide on how to optimize Amazon listings that rank.

📚 This Article Is Part of Our E-commerce Product SEO Series

Pillar: E-commerce Product SEO for Beginners: The Complete 2026 Guide

Parent article: Amazon Listing SEO: How to Optimize Listings That Rank

• What Is the Amazon A9 Algorithm and How Does It Rank Listings?

• Amazon Backend Keywords: What They Are and How to Use Them ← You are here

Explore the full series to go deeper on any topic.

FAQ

Can I use competitor brand names in Amazon backend keywords?

No. This violates Amazon's terms of service and can result in listing suppression. Backend keywords should be limited to generic, relevant search terms.

Do commas matter in the Amazon backend search terms field?

No, Amazon recommends separating terms with single spaces rather than commas, since commas can waste character space without adding search value.

Should I repeat my title keywords in the backend field?

No. Amazon already indexes your title, bullets, and description, so repeating those same terms in the backend field wastes space that could go toward new, uncovered search terms.

Not sure which backend keyword variations are actually worth including?

Find the right keywords with Rankivo →