Plugins on the list:

Redirection

By John Godley

Manage 301 redirects, track 404 errors, and improve your site. No knowledge of Apache or Nginx required.

Categories: General

Lets you make a WordPress page (or port or other content type) link to a URL of your choosing (on your site, or on another site), instead of its norma …

Categories: General

Easily redirect pages/posts or custom post types to another page/post or external URL by specifying the redirect URL and type (301, 302, 307, meta).

Categories: General

Automatically redirect, log and notify all 404 page errors to any page using 301 redirect for SEO. No more 404 Errors in WebMaster tool.

Categories: General

Manual related posts without slowing down your website!

Categories: General

Improve your SEO and your user experience through internal linkbuilding. Automated links between your posts based on a smart keyword configuration.

Categories: General