Contextual Related Posts


Contextual Related Posts is a powerful plugin for WordPress that allows you to display a list of related posts on your website and in your feed.

The list is based on the content of the title and/or content of the posts which makes them more relevant and more likely to be of interest to your readers. This allows you to retain visitors, reduce bounce rates and refresh old entries.

Although several similar plugins exist today, Contextual Related Posts is one of the most feature rich plugins with support for thumbnails, shortcodes, widgets, custom post types and CSS styles. The inbuilt cache ensures that you have related posts without excessive load on your server.

And the default inbuilt styles allow you to switch between gorgeous thumbnail-rich related posts or a similar text display!

Key features

  • Automatic: CRP will start displaying related posts on your site and feed automatically after the content when you activate the plugin. No need to edit template files
  • Manual install: Want more control over placement? Check the FAQ on which functions are available for manual install
  • Gutenberg / Block Editor support: You can find a block called “Related Posts [CRP]” with its own configurable set of options
  • Widgets: Add related posts to widgetized area of your theme. Lots of options available
  • Shortcode: Use [crp] to display the posts anywhere you want in the post content
  • The algorithm: Find related posts by title and/or content of the current post
  • Caching: Related posts output is automatically cached as visitors browse through your site
  • Exclusions: Exclude posts from categories from being displayed in the list. Or you can exclude posts or pages by ID
  • Custom post types: The related posts list lets you include posts, pages, attachments or any other custom post type!
  • Thumbnail support:
    • Support for WordPress post thumbnails. CRP will create a custom image size (crp_thumbnail) with the dimensions specified in the Settings page
    • Auto-extract the first image in your post to be displayed as a thumbnail
    • Manually enter the URL of the thumbnail via WordPress meta fields. Specify this using the meta box in your Edit screens.
    • Optionally, use timthumb to resize images or use your own filter function to resize post images
  • Styles: The output is wrapped in CSS classes which allows you to easily style the list. You can enter your custom CSS styles from within WordPress Admin area or use the style included.
  • Customisable output:
    • Display excerpts in post. You can select the length of the excerpt in words
    • Customise which HTML tags to use for displaying the output in case you don’t prefer the default list format
  • Extendable code: CRP has tonnes of filters and actions that allow any developer to easily add features, edit outputs, etc.

mySQL FULLTEXT indices

On activation, the plugin creates three mySQL FULLTEXT indices (or indexes) that are then used to find the related posts in the *_posts. These are for post_content, post_title and (post_title,post_content). If you’re running a multisite installation, then this is created for each of the blogs on activation. All these indices occupy space in your mySQL database but are essential for the plugin to run.

You have two sets of options in the settings page which allows you to remove these indices when you deactivate or delete the plugin. The latter is true by default.



Contextual Related Posts is GDPR compliant as it doesn’t collect any personal data about your visitors when installed out of the box. All posts are processed on your site and not sent to any external service.



I spend a significant amount of my free time maintaining, updating and more importantly supporting this plugin. Those who have sought support in the support forums know that I have done my best to answer your question and solve your problem.
If you have been using this plugin and find this useful, do consider making a donation. This helps me pay for my hosting and domains.


Contextual Related Posts is also available on Github.
So, if you’ve got some cool feature that you’d like to implement into the plugin or a bug you’ve been able to fix, consider forking the project and sending me a pull request.

Bug reports are welcomed on GitHub. Please note GitHub is not a support forum and issues that aren’t properly qualified as bugs will be closed.


Contextual Related Posts is available for translation directly on Check out the official Translator Handbook to contribute.


  • CRP options in WP-Admin - General options
  • CRP options in WP-Admin - List tuning options
  • CRP options in WP-Admin - Output options
  • CRP options in WP-Admin - Thumbnail options
  • CRP options in WP-Admin - Styles
  • CRP options in WP-Admin - Feed options
  • Default style of Related Posts
  • Contextual Related Post metabox in the Edit Posts screen
  • CRP Widget
  • Tools page
  • Gutenberg block - Settings sidebar


This plugin provides 1 block.

  • Contextual Related Posts


WordPress install (The easy way)

  1. Navigate to Plugins within your WordPress Admin Area

  2. Click “Add new” and in the search box enter “Contextual Related Posts”

  3. Find the plugin in the list (usually the first result) and click “Install Now”

Manual install

  1. Download the plugin

  2. Extract the contents of to wp-content/plugins/ folder. You should get a folder called contextual-related-posts.

  3. Activate the Plugin in WP-Admin under the Plugins screen

ਅਕਸਰ ਪੁੱਛੇ ਜਾਂਦੇ ਸਵਾਲ

If your question isn’t listed here, please create a new post at the support forum. It is the fastest way to get support as I monitor the forums regularly. I also provide premium paid support via email.

How can I customise the output?

Several customization options are available via the Settings page in WordPress Admin. You can access this via Settings » Related Posts

The plugin also provides you with a set of CSS classes that allow you to style your posts by adding code to the style.css sheet.

The main CSS classes / IDs are:

  • crp_related: ID of the main wrapper div. This is only displayed on singular pages, i.e. post, page and attachment

  • crp_related: Class of the main wrapper div. If you are displaying the related posts on non-singular pages, then you should style this

  • crp_title: Class of the span tag for title of the post

  • crp_excerpt: Class of the span tag for excerpt (if included)

  • crp_thumb: Class of the post thumbnail img tag

How does the plugin select thumbnails?

The plugin selects thumbnails in the following order:

  1. Post meta field: This is the meta field value you can use when editing your post. The default is post-image

  2. Post Thumbnail image: The image that you can set while editing your post in WordPress » New Post screen

  3. First image in the post: The plugin will try to fetch the first image in the post

  4. Video Thumbnails: Meta field set by Video Thumbnails

  5. Default Thumbnail: If enabled, it will use the default thumbnail that you specify in the Settings screen

Manual install

The following functions are available in case you wish to do a manual install of the posts by editing the theme files.

echo_crp( $args = array() )

Echoes the list of posts wherever you add the this function. You can also use this function to display related posts on any type of page generated by WordPress including homepage and archive pages.

Usage: <?php if ( function_exists( 'echo_crp' ) ) { echo_crp(); } ?> to your template file where you want the related posts to be displayed.


Takes a post ID and returns the related post IDs as an object.

Usage: <?php if ( function_exists( 'get_crp_posts_id' ) ) { get_crp_posts_id( array(
'postid' => $postid,
'limit' => $limit,
) ); } ?>


$postid : The ID of the post you’d like to fetch. By default the current post is fetched. Use within the Loop for best results.

$limit : Maximum number of posts to return. The actual number displayed may be lower depending on the matching algorithm and the category / post exclusion settings.


You can insert the related posts anywhere in your post using the [crp] shortcode. View this article in the knowledge base for more details.


28 ਨਵੰਬਰ 2020
I love your plugin. It does a great job. However, in websites that regularly post topics with similar set of words it becomes tougher for rated posts to be more relevant. I would love if you can create a box where certain terms and words will be blacklisted that is, they shouldn't be considered if bringing up rated topics so as to not to affect the output.
26 ਅਕਤੂਬਰ 2020
I wanted a simple related posts plugin, and one with more relevance. Using this plugin's "fine tuning" I got great results. I also integrated it's look on the frontend using custom CSS that made it look amazing.
22 ਸਤੰਬਰ 2020
Tested five different related post plugins. This is my favorite by far! The related posts can really be called related. And when using the cache it is really fast, too (in the order of a few ms). Thank you for this great piece of software.
27 ਜੁਲਾਈ 2020
This plugin is feature-rich and very easy to configure, performance is good even when thumbnails are enabled, I really like this plugin, also the support is very fast, thanks mate for this beautiful plugin.
10 ਜੁਲਾਈ 2020
This is one of the best related posts plugin I tried, I appreciate a lot extension for category and tags too because I don't use tags neither featured image. One of interest thing is possible to use the first image in post. Without tags, the correlation is more difficult, but CRP gets good results of his own, and the extension improves more. I'm very satisfied especially because I can use in related posts thumbnail too. It's light, responsive, and has a nice CSS style. In the admin dashboard under each post is possible to modify which related posts you prefer to use, even to add keywords, or manually add specific post to correlating. With the option of keywords, it works as if there were tags for the precision of the correlation .
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ਯੋਗਦਾਨੀ ਤੇ ਵਿਕਾਸਕਾਰ

“Contextual Related Posts” is open source software. The following people have contributed to this plugin.


“Contextual Related Posts” has been translated into 3 locales. Thank you to the translators for their contributions.

“Contextual Related Posts” ਦਾ ਆਪਣੀ ਭਾਸ਼ਾ ਵਿੱਚ ਅਨੁਵਾਦ ਕਰੋ।

ਵਿਕਾਸ ਕਾਰਜ ਵਿੱਚ ਰੁਚੀ ਰੱਖਦੇ ਹੋ?

Browse the code, check out the SVN repository, or subscribe to the development log by RSS.



Release post:

  • Bugs:
    • Fixed nonce verification not always done in Import/Export interface. Thanks to Lenon Leite


Release post:

  • ਵਿਸ਼ੇਸ਼ਤਾਵਾਂ:

    • New constant CRP_VERSION to hold the current version of the plugin
    • New setting to delete FULLTEXT indices on deactivation
  • Enhancements:

    • Added the $args attribute to the filters in main-query.php


Release post:

Bug fixes:
* Password protected posts will no longer show the excerpt


Release post:

Bug fixes:
* Custom CSS box would not save and get cleared out when saving settings
* include_cat_ids didn’t work with the shortcode


Release post:

  • ਵਿਸ਼ੇਸ਼ਤਾਵਾਂ:

    • New section under Settings > Related Posts > Tools to export and import settings. Best option if you’d like the same configuration across multiple WordPress sites
    • New shortcode setting include_cat_ids to limit top posts to selected categories/taxonomies. Use a comma separated list of term_taxonomy_id
    • New setting in widget to only include certain categories. Doesn’t work with custom taxonomies
  • Enhancements:

    • New function: crp_get_thumb_size() to get the correct size of the thumbnail
    • Only run a get_post query if only the post ID is passed to crp_get_the_post_thumbnail()
    • $match_fields parameter added to crp_posts_match filter
    • Updated WPML functions to use latest filters
    • Admin scripts are no longer loaded into the head – but using a separate JavaScript file
    • Implemented CodeMirror to format custom styles box
    • New filters get_crp_short_circuit and get_crp_posts_id_short_circuit to bypass outputs and queries
    • CRP_MAX_WORDS has been reduced from 500 to 250 to avoid “Too many words” mySQL error
    • The link to the Contextual Related Posts link is no longer a list item but a smaller text paragraph below the items. You can turn this on by enabling Show Credit.
  • Bug fixes:

    • Fixed errors created when trying to fetch a featured image or scanned images with remote links
    • Saving categories fields in the settings page uses str_getcsv and a custom function crp_str_putcsv

Earlier versions

For the changelog of earlier versions, please refer to the separate changelog.txt file or the releases page on Github.