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The referrer settings are mostly tools to help you make the best of your affiliate program.
There are three possibilities:
- Indexing. You must click once on the "Refresh index" button when you add a new referrer and you want to analyze your past traffic for this new referrer.
- Cache. PrestaShop caches the data it gathers. You can use the "Refresh cache" button to regularly refresh your data cache.
- Save direct traffic?. Direct traffic represents visitors who arrive on your shop directly, by typing your URL in their browser. While these are important because they are visitor who really know about your shop and are interested in your products (contrary to visitors with referrer, who might have simply stumble upon your shop by chance), saving this traffic can put a huge toll on your database. This is why this traffic is not saved nor analyzed by default. Only enable this option if you know what you are doing.
- Indexation. You must click once on the "Refresh index" button when you add a new referrer and you want to analyze your past traffic for this new referrer.
- Cache. PrestaShop caches the data it gathers. You can use the "Refresh cache" button to regularly refresh your data cache.