PCs or even mobile devices store temporary data so that websites can be loaded faster. This data is stored on the visitor's device. From time to time it is necessary to empty the cache. This makes sense when there is something new on shops and websites that is not yet stored in the cache. Emptying the cache is usually quite simple via the settings of the browser used (usually in the "Data protection" area).

The cache must also be cleared in the shop itself from time to time so that adjustments are displayed. If this is not a function of the selected (shop) software, you should use an extension for this.


In the context of online marketing, conversion usually means the transformation of a visitor to a website, i.e. a prospective customer, into a customer or at least a registered user. In the case of an online shop, the conversion can consist of a visitor to the site placing an order and thus developing from an interested party to a customer.

Conversion rate

The conversion rate calculates the percentage of prospective buyers who actually become buyers when visiting the website. In order to determine the exact ratio in which visitors become buyers, the "unique visitor" is used, in which not all clicks, but each visitor is recorded individually.

The conversion rate is calculated by dividing the number of conversions by the number of total visitors. For example, if you had 50 conversions out of 1,000 visitors, your conversion rate would be 5% because 50 x 100 ÷ 1,000 = 5%.

Conversion tracking

Conversion tracking lets you know how the performance of your ads and listings relates to the success of your business - and which of your ads, listings and keywords contribute most to your success.

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