SEO (Search Engine Optimization) is the process of boosting the visibility of your website in search engine results. Basically, SEO takes the content on your website more legible and attractive to search engines so they not only find you but rank your site higher than millions of other websites for relevant search queries.
Wix allow you to build either a HTML5-based website or a flash-based website. HTML based websites are better for SEO as search engine crawlers can crawl through the codes to understand what your website is about and rank you accordingly.
Wix has an escaped_fragment version of your page which it serves to search engines and as far as our testing and use of it has gone, it works JUST FINE, in fact quite well compared to so many other options out there. Google does see and index every single page and sub-page you create in their html5, and so does bing.
Wix allows you to optimize all the basic SEO functions, such as descriptions, titles and keywords for each web page. This is no different from other website builders in the market, so it’s right on par. Wix has the option to create a mobile site, which is highly recommend, as Google announced that it would be punishing websites in search rankings that are not mobile friendly. You can also insert Google Analytics to start tracking your website visitor statistics as well.