Samuel Aguilera

There are three possible scenarios where this plugin does something. In all cases, the attachment page must exists, the plugin will not run for deleted attachments:
A) A visitor lands on an attachment page and the parent post is available (not in trash or deleted). A 301 redirect will be issued to redirect the visitor to the parent post.
B) A visitor lands on an attachment page and the parent post was already deleted from trash. A 302 redirect is issued to home page (this can be changed to 301 if you want, see FAQ for more details).
C) A visitor lands on an attachment page and the parent post is in trash, therefore not available for the visitor. It returns a 404 error code to prevent endless redirection loop in old WP releases and redirecting to trashed/not available posts.
There is no options page, simply activate it and will do the job.
If you’re happy with the plugin <a href="https://wordpress.org/support/plugin/attachment-pages-redirect/reviews/?filter=5" rel="ugc">please don’t forget to give it a good rating</a>, it will motivate me to keep sharing and improving this plugin (and others).
<h4>Requirements</h4>
<ul>
<li>WordPress 4.8 or higher.</li>
</ul>

Attachment Pages Redirect

Redirect attachment pages or return a 404 error for them based on the parent post status.

Mike

This plugin was created to make it easier for users to write redirection rules for their site. It generates the correct redirect code to match the user’s request and places it into the .htaccess file. This plugin has a button that uses a 3rd party <a href="http://www.htaccesscheck.com/index.html" rel="nofollow ugc">validator</a> to give the user confirmation that the .htaccess file is formatted correctly. The 3rd party’s terms of service can be found <a href="http://www.htaccesscheck.com/about.html" rel="nofollow ugc">here</a>. No user data is sent to the 3rd party; only .htaccess file contents. You can contact the 3rd party on their <a href="http://www.htaccesscheck.com/contact.html" rel="nofollow ugc">contact page</a>. This 3rd party is a free services created by <a href="https://www.lexiconn.com/" rel="nofollow ugc">LexiConn Internet Services Inc.</a>. Their privacy policy can be read <a href="https://www.lexiconn.com/privacy.html" rel="nofollow ugc">here</a>.

Simple Htaccess Redirects

Appends the correct code into the .htaccess file for redirection.

Attachment Pages Redirect vs Simple Htaccess Redirects