Knowledge base contains information on how to use Relevanssi. There are lots of features that are documented in the knowledge base. Here's an index to the knowledge base, with all the entries sorted under different topics.
The user manual functions page is also a good place to look at.
If your posts include content from related posts using the Advanced Custom Fields relationship functionality, Relevanssi doesn’t index that content by default. Even if you set Relevanssi up to index the ACF fields, the relationship fields do not include any content, just references to other posts. Those, even if indexed, are not particularly helpful. ACF…
Relevanssi Premium has support for in-query Boolean operators. Relevanssi uses + and – for the operators: cats -dogs and cats +kittens. If you prefer instead to use the verbal AND and NOT operators, it only takes one small function. Add this to your site: This function (on the relevanssi_search_filters hook) looks at the search query…
Advanced Custom Fields makes it possible to add custom fields to taxonomy terms. You can only do this with Relevanssi Premium because the free version of Relevanssi can’t index taxonomy terms. Suppose you set Relevanssi to index custom fields. Relevanssi won’t index these taxonomy custom fields because taxonomy terms aren’t generally allowed to have custom…
Custom fields (also known as post meta or meta fields) are a major part of WordPress the default search won’t search. That’s a big problem for people who use solutions like Advanced Custom Fields or Carbon Fields to develop sites: on sites developed with custom field plugins large parts of the post, content may be…
Relevanssi doesn’t ship with a live search or autocomplete feature that would display results as the user types the search terms. There are many other plugins that provide this functionality, but few of these plugins work with Relevanssi. SearchWP Live Ajax Search is the best one that does. It’s very easy to use, most of…
Relevanssi Premium users have asked for PDF indexing since day one, and version 2.0 finally introduced this feature. Coming up with a fast and reliable method hasn’t been easy, but we’re pretty proud of what we have now. Our PDF indexer doesn’t tax your server as it runs as a service on a separate server.…
By default posts imported with WP All Import do not get indexed by Relevanssi. The importing process does not trigger Relevanssi indexing. That is, however, easy to remedy: Add this code to your site, and any posts imported with WP All Import will be indexed with Relevanssi. Do note that this will make the importing…
I have some trouble with reindexing of new posts. The reason is simple – I sync data into the database automatically. So what I need is a cronjob to reindex the site once a day. How do I do a cronjob? The easiest way would be to get Relevanssi Premium and use WP CLI, so…
Some event calendar plugins do recurring events by creating many posts. That’s fine until those cloned posts fill up your search results. This function will only show one of each post with the same title and will take the one with the first date. The date is checked from _EventStartDate custom field, but it’s easy…
Relevanssi can index product and product variation SKUs for WooCommerce products: just add _sku to list of custom fields to index. However, if you want to find the main product when searching for the product variation SKU, you need some extra code using the relevanssi_content_to_index filter hook. Add this function to your site and rebuild…