Amazon Listing Optimization for Amazon US Sellers

US spelling, imperial units first with metric alongside, and a search index with more query volume and more competition per term than any other store; the 200-character title limit and the 250-byte backend field apply, and Rufus draws on US listings most heavily.

WeSpark runs Amazon listing optimization for brands selling on amazon.com: keyword research, titles, bullets, descriptions and backend terms that index and convert, plus catalog fixes and readiness for Rufus and COSMO. The same named team, the same weekly reports and the same written scope and price before you pay, applied to the Amazon US marketplace in USD ($) and in English (US spelling).

How the service works on Amazon US

B1Listing creation and optimization — start to finisha listing built on research — your customers' language, your competitors' gaps and your own sales data — not just a rewrite. B2How we write your listing copycopy checked for Amazon policy, character limits, brand voice, indexing and mobile readability before you approve it. B3How we find and index your keywordsa tiered keyword list your listing actually ranks for, verified 48 hours after upload and tracked every week. B4Getting your listing ready for AI-assisted searcha listing that answers real questions — which helps AI-assisted search and human conversion at the same time. B5How we fix catalog and technical problemssuppressed listings, upload errors, duplicate ASINs and shipment discrepancies handled through the right Amazon channel, with the root cause logged so it does not recur.

What is different about Amazon US

Fee changes are announced with notice and usually take effect early in the year, with storage rates rising in Q4; rebuild profit per ASIN every time the schedule changes.

• Tax and compliance: No federal VAT; Amazon collects and remits state sales tax on marketplace orders under marketplace facilitator laws in the states that have them, but your own registration duties depend on where you hold stock and operate, so check with a US tax adviser.
• Fulfilment: FBA US is the largest fulfilment network, with inbound placement fees, low-inventory-level fees and capacity limits that reward accurate forecasting; stock can also serve Canada and Mexico through North America Remote Fulfillment.
• Peak events: Prime Day in July, the Prime Big Deal Days event in October, Black Friday and Cyber Monday in late November, and the December holiday run to the shipping cut-off; back-to-school in late July and August matters for several categories.

Read the full marketplace guide: Selling on Amazon US.