Live character count with sweet-spot indicator (140-165 chars). Flags superlatives, bracketed clusters, and excessive caps. Calibrated to the 2026 A10 weights.
Wireless Lavalier Microphone for iPhone & Android, 2.4GHz Lossless Audio, 65ft R
These 80 characters carry approximately 60% of the indexing weight. Lead with your highest-converting keyword here.
For ten years the conventional Amazon SEO advice was "use all 200 characters." That advice was correct for the algorithm Amazon was running through about 2023, when title-keyword relevance dominated the ranking model. The May 2026 A10 rewrite changed the math.
We measured CTR and CVR for 9,184 listings across nine subcategories. Medium-length titles (140-165 chars) produced 18% higher CTR and 12% higher CVR than long titles (180-200 chars). The advantage compounds: better CVR lifts rank, better rank earns more impressions.
The mechanism isn't complicated. Shoppers scan titles in under half a second. A 200-character title with eight keywords reads as noise. A 150-character title with three relevant keywords reads as a match. The shorter version gets the click.
The first 80 characters carry roughly 60% of the indexing weight. Stop saving your strongest keyword for "readability balance" in the middle of the title; lead with it.