Welcome to the Q&A Forum

In addition to John's link to the Moz blog, I also can't recommend the Beginner's Guide to Link Building enough.

Hi Kelly. Temporary redirects for things like adding items to a cart, changing languages, and the like are acceptable and shouldn't be viewed as an error per se. You could possibly put your cart in its own directory and then have that directory be ignored by Moz to clean them up, but in your use case it's not an issue.  Cheers!

This should be totally fine. It's pretty common blog/wordpress practice to have excerpts on a category page and then the full article/recipe on that individual page. Also, just to dispel a myth there is no duplicate content "penalty" - so nothing to fear from that standpoint anyway - just try to make each page have a distinct purpose, which they do. The category page allows users to browse all the recipes in that category and choose which to view. The recipe page allows users to view the whole recipe and use it to hopefully cook something tasty

Hi Chenzo, yes magento to magento, 301 redirect on the base domain was made after the site was made live and indexed. Any advice much appreciated! I am really enjoying these forums - hope you don't all get sick of me! haha

Hey Kelly, Seems like there is a problem with your redirection. You should get the help of your developer to fix it from the controller. Check out this guide: https://www.apptha.com/blog/magento-url-redirect-from-controller/ You can also use this magento's extension (I've used it and it worked out really good) http://www.magentocommerce.com/magento-connect/optimise-web-s-mass-301-redirects-for-404-pages.html Hope this helps! Thanks,

Thank you for this much appreciated information!!