SEO Suite provides a great toolset which helps content managers creating content that perform well in search engines.

SEO Suite

This is a driver for Simple Search to talk to Algolia for indexing and retrieving results. 

SSAlgolia

The extension is designed to work with the ElasticSearch server.

Elastic

A simple search solution for MODX Revolution.Upgrade risksFirst of all: ALWAYS MAKE A BACKUP BEFORE UPDATING!Upgrading to 2.0.0 from 1.* is highly recommended, but it does introduce some risks.Important changes from 1.* to 2.0.0:<ul><li>The namespace has been changed from&nbsp;sisea&nbsp;to&nbsp;simplesearch. If you're using custom System Settings, then please migrate them.</li><li>The ElasticSearch and SOLR drivers have been&nbsp;removed,&nbsp;because they were in need of improvements. Future drivers should be&nbsp;seperate&nbsp;addons. Feel free to ask us for help here.</li></ul>Bugs and feature requestsWe value your feedback, feature requests and bug reports. Please issue them on&nbsp;<a href="https://github.com/Sterc/SimpleSearch" title="" target="">Github</a>.

SimpleSearch

Add-on to automatically generate JSON+LD Schema on MODX Resources.

AutoSchema

DirWalker is a utility class for recursively traversing directories.

MODX 3 Compatible

DirWalker

The plugin in this package highlights the searched terms in the `searched` request parameter on the fly on the current displayed page.

SearchHighlight

<a href="https://modx.com/extras/package/seosuite">Now part of SEO Suite</a>
SEO Tab is a MODX Extra that helps you optimise your pages for the best possible performance in search engines, like Google.Key features of SEO Tab:<ul><li>Manage search engine visibility (noindex, nofollow)</li><li>Manage internal search behavior</li><li>Manage your Google XML Sitemap(s)</li><li>Manage 301 redirects both centrally and per resource</li><li>Automatically generate 301 redirects when changing a resource URL</li><li>Freeze URL functionality is moved into the SEO-tab</li></ul>

SEO Tab - Now part of SEO Suite

Generates a Google SiteMap XML.New GoogleSiteMap Snippet—many times faster than Version 1, but with less options. If params are specified that depend on the old version, it will be called.Please see the official documentation here: <a href="https://rtfm.modx.com/extras/revo/googlesitemap" title="Documentation" target="_blank">https://rtfm.modx.com/extras/revo/googlesitemap</a>Source code is here: <a href="https://github.com/modxcms/GoogleSiteMap/" title="Source" target="_blank">https://github.com/modxcms/GoogleSiteMap/</a>

GoogleSiteMap

ResourceSelectInput V2 - Custom Input type for modmore contentBlocks to select resources is a complete Rewrite of the Inputtype and is not compatible with V1.

Developed by Alexander Herling / DEGOYA medienkommunikation oHG

Thanks to sepiariver for adding the Git Package Management Support ([https://github.com/theboxer/Git-Package-Management](https://github.com/theboxer/Git-Package-Management))

cb.resourceSelectInput v2

LocationResources is a basic integration between the Google Maps API and MODX Resources.It
 allows drag and drop in the MODX manager to position maps and set 
markers which is then reflected on the web context (or others).

LocationResources

FullTextSearch adds the features and functionality of MySQL's FULLTEXT search to MODX, using a fully-customizable search index table. Specify Resource fields, TVs and content from other tables to include in the index. Integrates with listing Snippets like getResources and pdoResources for templated output.

MODX Extras