Conversion Rate Optimization (CRO) supports site performance by improving the ratio of site visitors converted into actual customers. CRO also assists in increasing sales, Click-through rates, and other undefined goals without having to increase the amount of traffic coming to your website.
Conversion rate results also influence ROI from every traffic source and campaign you run; so, the higher your conversion rate, the better your ROI will be.
CRO improves nearly every other aspect of digital marketing by increasing the value of your website to each visitor. This change is due to permanent improvements within your CRO and it lasts long after testing is complete. Even if you decided to build a whole new website in the future, you would still retain and be able to use the results from all tests that were run now. The information would still be a knowledge bank of optimal practices useful for your next venture.