Difference between changing sitename.com and sitename.com/ info?

[prospects]

my crawl is showing duplicate content between my sitename.com and sitename.com/

i remember the beginner's guide referencing that these are separate websites - but how do you modify their title info on a wordpress.org blog, and what's the difference between getting to these two sites?

also, are there any wordpress.org plugins to mass fix meta descriptions, and not founds, retroactively?

i have all in one seo, but not sure how to apply the changes retroactively. a new crawl shows too many to fix manually (89+) missing metas,  mostly due to multiple pages on categories, etc. and other time consuming, tedious generations..

any help appreciated, thanks

[prospects]

thanks Marcin -

Very helpful of you!  I guess I just had to learn how to use the tools provided.

Much appreciated

[marcinlejman]

I would recommend that you have a closer look at Wordpress SEO plugin by Yoast

It is in my opinion currently the best SEO plugin for Wordpress available, and I've tried them all, on many sites.

With this plugin, you will be able to fix all of your issues:

a) URLs with or without "/" at the end - Go to SEO -> Permalinks -> activate "Enforce a trailing slash on all category and tag URL's"

b) You will be able to configure dynamic meta descriptions using SEO -> Titles. As they are generated dynamically, using placeholders which are replaced with actual content, you don't have to worry about updating your older posts.

If you have further questions, please feel free to ask.