This plugin will issue a HTTP 410 response to requests for articles that no longer exist on your blog. When you delete a post or page, it records the URL for that page and issues a 410 response when that URL is requested. You can also manually manage the list of obsolete URLs.
The HTTP Specification defines the 410 response header for use when a resource has been permanently removed. It informs robots visiting your site that the requested content has gone, and that they should stop trying to access it.
If you come across any bugs or have suggestions, please use the plugin support forum. I can’t fix it if I don’t know it’s broken! Please check the FAQ for common issues.