Would give this a zero ranking if possible. As SEO professionals, we have two case studies where this plugin dramatically negatively effected client's SEO rankings - before and after scenarios. We will not use anything by Yoast - it is too risky - this also seems to be the conclusion of many other SEO experts. Yoast plugin's high rankings may be due to NON-experts using Yoast and not really understanding what it is doing. Suggest using "All In One SEO" plugin instead - great success with it with multiple clients. We are not affiliated with any plug-in developers. Bottom line - do your research before using plugins. Hope this helps!