It is crucial as your conversion rates will be greatly improved and the products and services you offer will be bought at a higher rate as you will be receiving the right kind of customers. In addition, the constant traffic that is channeled to your website will have a great role to play in lifting the ranking of your website thus providing you greater visibility in Google searches.
Web analytics is the measurement of the behavior of visitors to a website. In a commercial context, it especially refers to the measurement of which aspects of the website work towards the business objectives of Internet marketing initiatives; for example, which landing pages encourage people to make a purchase. Notable vendors of web analytics software and services include Google Analytics, IBM Digital Analytics (formerly Coremetrics) and Adobe Omniture.