2) You can choose the URL of your website: www or non-www. Plus DNN allows setting up an implementation of 301 redirect. If you change your URLs, you don’t loose any traffic.
Advice from our SEO Experts: If you didn’t choose what website has priority (www or non-www), your website is split to two parts. That’s why we highly recommend you to set up a 301 redirect and to choose one priority site. These things will help you to increase your website’s search rank.
3) In DNN it is possible to change your SEO urls, make them pretty and SEO-friendly. But to implement this option you need to buy a third-party module.
Advice from our SEO Experts: Try to use some of your most important words from title in your URL. It will also help to increase your website’s search rank.
So, these features make DotNetNuke a good CMS for those who are planning to optimize their websites through search engine optimization and search marketing.
And what do you think about SEO advantages/disadvantages in DNN?