Google Trends
Google Trends is a free search analytics tool that shows how interest in a keyword changes over time. Instead of giving exact search volume numbers, it displays relative search popularity based on Google search data.
For eCommerce sellers and marketers, Google Trends is mainly used to validate demand. If you’re considering a product, niche, or keyword, you can quickly check whether interest is growing, declining, or seasonal. It’s especially useful for spotting upward trends before they become highly competitive.
You can also compare multiple keywords side by side and see which regions have the highest interest. This helps with market selection, keyword research, and understanding geographic demand patterns.
Keep in mind that Google Trends does not provide sales data or precise search volume. It’s best used as a directional tool — to confirm momentum and market interest — rather than a standalone decision-maker.
Overall, it’s a simple but powerful starting point for product research, niche validation, and content planning.