3. True 404 Pages, 310 Redirects, and Other Rewrite COntrol
There are some hosted ecommerce platforms that don’t allow control over 310 redirects, as well as, URL rewriting which is a huge problem. There are a lot of platforms that don’t send a proper 404 status for a certain dead page, instead opting to redirect to 302 (status 200) 404.html or much worse to the homepage. As the products you present and sell are removed from your catalog, as a website owner, you should be able to 301 redirect the old URL to the related product or maybe send 4040 status message.
4. Robust Sitemap
Most reliable and modern ecommerce platforms submit Sitemaps to the search engines, however, there is so much more that should be done. Segmented Sitemaps is a great way to monitor and control the induction of various sections of your site. If your ecommerce platform you want to use doesn’t allow you to adapt your Sitemaps, you would be missing out on huge opportunities.