For years after making a large number of "mods" to Zen Cart, a Open Source e-commerce platform, a customer asked us to refactor their entire system. Needed improvements were in the area of performance, SEO and adoption of third-party shipping quotation services. Our customer needed to scale their e-commerce Web site to service a growing number of unique visitors (over 400K strong) and rely increasingly on organic search traffic by optimizing their 11,000 products for major search engines.

Our challenge: tune Zen Cart for peak performance, incorporate SEO to Zen Cart catalog pages, and consume third-party shipping quotation services.