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.
BeTheme does the strangest, weirdest, and least productive things with search I’ve ever seen in a professional theme. It can automatically clear out your search term, which of course leads to Relevanssi searches failing. I have no idea what that is trying to achieve, but it makes searching very frustrating. Fortunately, the fix is simple.…
Relevanssi has plenty of useful filter hooks you can use to debug problems. Here are some examples of how you can use the Relevanssi filter hooks to debug issues. Add the functions one at a time to your site and run a search to see results. First, try the Relevanssi admin search. Before checking the…
Relevanssi category exclusion setting doesn’t work properly with WPML. Here’s a bit of code from Srdjan Jocić from OnTheGoSystems that fixes it. Just add this to your theme functions.php.
If you have Relevanssi Premium and want to make Relevanssi understand French plurals, you can add this code to your site: Then just rebuild the index, and now searching for plurals will also find the singular form. This is a very simple way to handle the plurals: it will simply strip the final “s” or…
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.…