Bernhard Kau

Kau-Boy’s OpenSearch is deprecated and will be removed from the plugin directory on July 29, 2023, 13 years after its first release. If you still want to use OpenSearch on your site, I recommend switching to <a href="https://de.wordpress.org/plugins/open-search-document/" rel="nofollow ugc">Open Search Document</a> which is still actively supported.
Integrates an OpenSearchDescription so that users can add your blog as a search location to their browsers. Your favicon will also be visible next to the search option in the browser.
You don’t need to setup any information. Just install and activate the plugin!

Kau-Boy's Opensearch

Integrates an OpenSearchDescription so that users can add your blog as a search location to their browsers. Your favicon will also be visible next to  …

Duoc Nguyen

OpenSearch is a collection of simple formats for the sharing of search results.
Simply, This plugin help you to make browser’s addressbar become your search form. After install this plugin, you go to yout website onetime, after that, you open tab, and type you url, then press “tab” key. tadaaa…
Feature:
<ul>
<li>Admin Setting Page supported</li>
<li>Insert Searc metatab on your page’s head.</li>
<li>Add rewrite for opensearch.xml</li>
</ul>
<h4>Cộng đồng wordpress Việt Nam</h4>
<ul>
<li><a href="https://laptrinh.senviet.org" rel="nofollow ugc">Sen Việt</a></li>
<li><a href="https://www.facebook.com/pages/Wordpress-Vi%E1%BB%87t-Nam/1531229807110426" rel="nofollow ugc">Facebook page</a></li>
<li><a href="https://plus.google.com/112246631672323028789?prsrc=5" rel="nofollow ugc">Google plus</a></li>
</ul>
<h4>Dành cho nhà phát triển</h4>
Hướng dẫn : <a href="http://laptrinh.senviet.org/wordpress-plugin/viet-plugin-them-opensearch-vao-wordpress/" rel="nofollow ugc">VIẾT PLUGIN THÊM OPENSEARCH VÀO WORDPRESS</a> 
Github : <a href="https://github.com/senviet/355_wp_Opensearch" rel="nofollow ugc">Source code on Github</a>

WP Opensearch Advance

Add Open Search to your website has never been so easy.

Kau-Boy's Opensearch vs WP Opensearch Advance