MarcusPope

A WordPress plugin that converts all URL formats to root-relative URLs to enable seamless transitioning between staging/production host environments and debugging/testing from mobile devices, without the use of hackish tactics like textual find-replace strategies or risky hosts/NAT spoofing strategies.
With Root Relative URLs you can browse your development site from http://localhost/ or http://127.0.0.1/ or from a named network resource like http://mycomputername/ without worrying about links redirecting you back to your site’s URL.
This plugin also modifies the tinyMCE hooks so links and media embedded with built-in tools will only insert URLs from the first forward slash after the domain (i.e. the root of your site.) This means when you push content changes to a staging or production environment they are guaranteed to reference the correct target instead of accidentally referencing a production resource in development or, worse-yet, a development-exclusive resource in production.
It supports path-based MU Installations, but does not support domain-based MU sites due to architectural deficiencies in the WordPress core.
Version 1.5 fixes an infinite redirect problem that is a result of a core bug in WordPress. If you have problems with the <!–more–> tag or permalinks for custom post types, please read the FAQ or new Install Steps for support.
Version 2.2 allows for adding certain URL’s or partial URL’s to a blacklist, meaning I won’t use root relative urls, but dynamic absolute URLs instead for displaying content. This will fix problems with 3rd party plugins, and can be configured on the General Settings page.
<h3>Arbitrary section</h3>

Root Relative URLs

Converts all URLs to root-relative URLs for hosting the same site on multiple IPs, easier production migration and better mobile device testing.

cartpauj

Shortcode Redirect sends visitors from any post or page to another URL. No settings screens, no database tables — just drop it in where you need it.
There are two ways to use it, and both produce the exact same front-end output.
1. The Redirect block (new in 1.1.0)
In the block editor, add the Redirect block from the Widgets category. The block sidebar exposes three simple fields:
<ul>
<li>Destination URL — where the visitor should end up</li>
<li>Seconds to wait — how long to pause before redirecting (<code>0</code> = immediate)</li>
<li>Show “redirecting” message — toggle the visible “Please wait…” line on or off</li>
</ul>
The editor shows a live summary of what the block will do, e.g. “Redirects to https://example.com — after 3 seconds · message shown”. No shortcode syntax to memorize.
2. The classic shortcode
Paste into any post or page:
<pre><code>[redirect url='https://example.com' sec='3']
</code></pre>
Shortcode attributes:
<ul>
<li><code>url</code> — destination URL (required)</li>
<li><code>sec</code> — seconds to wait before redirecting (optional, default <code>0</code>)</li>
<li><code>show_message</code> — set to <code>false</code>, <code>0</code>, <code>no</code>, or <code>off</code> to hide the “redirecting” message (optional, default <code>true</code>, new in 1.1.0)</li>
</ul>
Example with all three:
<pre><code>[redirect url='https://example.com' sec='5' show_message='false']
</code></pre>
Same output either way
Block or shortcode, the front-end renders the same single <code><meta http-equiv="refresh"></code> tag (plus the optional one-line message). No JavaScript. No server-side redirect. No third-party tracking. Existing <code>[redirect]</code> shortcodes from earlier versions continue to work unchanged.
<h4>Features</h4>
<ul>
<li>Block editor support — native “Redirect” block (new in 1.1.0)</li>
<li>Classic shortcode — <code>[redirect]</code> works exactly like it always has</li>
<li>Optional delay — choose how many seconds to wait before redirecting</li>
<li>Silent mode — hide the “redirecting…” message for a clean, blank-page redirect (new in 1.1.0)</li>
<li>Lightweight — a single PHP file plus a small block; no settings, no tables, no dependencies</li>
<li>Backwards compatible — upgrading from 1.0.x is drop-in</li>
</ul>

Shortcode Redirect

Redirect any post or page — with a native block or a classic shortcode. Optional delay. Optional "redirecting" message. Zero configuration.

Root Relative URLs vs Shortcode Redirect