John Dalesandro

The Head Trimmer plugin for WordPress is a customizable plugin to remove automatically generated information from the HEAD element across a site. These extras add bloat to a website and expose WordPress version information as well as other potential security signatures in the generated source code.
Removal options include:
<ul>
<li>WordPress Version</li>
<li>WordPress Version from URLs for Scripts and Styles</li>
<li>Shortlink</li>
<li>Shortlink from HTTP response headers</li>
<li>Canonical</li>
<li>Relational Links for Posts Adjacent to Current Post</li>
<li>RSS Feeds</li>
<li>Really Simple Discovery Link for xmlrpc (rsd_link)</li>
<li>Windows Live Writer Manifest File Link (wlwmanifest_link)</li>
<li>oEmbed Discovery Links</li>
<li>REST API Link</li>
<li>REST API Link Header</li>
<li>Emoji Support</li>
<li>Global Styles and SVG Filters (duotone filters)</li>
<li>Gutenberg Block CSS Styles (or set ‘should_load_separate_core_block_assets’)</li>
<li>Classic Theme Styles (classic-theme-styles)</li>
<li>DNS Prefetch for //s.w.org</li>
<li>DNS Prefetch for Google Fonts //fonts.googleapis.com</li>
<li>jQuery</li>
</ul>

Head Trimmer

Customizable plugin to selectively remove WordPress version information, feeds, shortlinks, xmlrpc, emoji support and other miscellaneous extras from  …

farinspace

HiFi is a head injection and foot injection plugin (or head include, foot include, head insert, foot insert, what ever you want to call it). It basically allows you to inject <code><script></code>, <code><style></code>, <code><meta></code> and any other code you want into the head and foot areas of your posts and pages. The code injected is page-specific, this means that only the pages you want code inserted into will be affected.
This plugin is most useful when you have specific functionality that needs to be added on a per-post/page basis.

HiFi (Head Injection, Foot Injection)

HiFi is a head and foot injection plugin. It allows you to inject code into the head and foot areas of your posts and pages on a per-page basis.

Head Trimmer vs HiFi (Head Injection, Foot Injection)