
What is RSD (Really Simple Discovery)?
By default, new WordPress installation added Really Simple Discovery (RSD) links that gets appended to the header section of your blog.
This is how it looks when you inspect your site’s header section in Chrome.

<link rel="EditURI" type="application/rsd+xml" title="RSD" href="https://pro.crunchify.com/xmlrpc.php?rsd">
Having it in Header section is not an issue but if you are not using any of discovery services then there is no point messing up and adding extra line to Header section.
How to disable Really Simple Discovery in WordPress?
Just add below code to your theme’s function.php file.
remove_action( 'wp_head', 'rsd_link' );
Is there any other way to disable Really Simple Discovery using Plugin?
Yes.
- Download plugin Crunchy Optimizer.
- Enable toggle: Disable Really Simple Discovery service endpoint.

That’s it and you are all set. Hope this tutorial helps you.

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