CSS - Comparison Shopping Service

What does CSS mean?

CSS means Comparison Shopping Service. It's an external comparison tool visible in Google Shopping which shows which companies offer the same product.

Why should I use a CSS?

If you choose an external CSS the 20% margin markup that Google's CSS invoices is completely deducted, which essentially means you bid 20% higher with the same CPC. In that case you will win more auctions than any competitor who is not using an external CSS without paying more.