Mikko Saari

Relevanssi replaces the standard WordPress search with a better search engine, with lots of features and configurable options. You’ll get better results, better presentation of results – your users will thank you.
This is the free version of Relevanssi. There’s also Relevanssi Premium, which has added features. For more information about Premium, see <a href="https://www.relevanssi.com/" rel="nofollow ugc">Relevanssi.com</a>.
Do note that using Relevanssi may require large amounts (hundreds of megabytes) of database space (for a reasonable estimate, multiply the size of your <code>wp_posts</code> database table by three). If your hosting setup has a limited amount of space for database tables, using Relevanssi may cause problems. In those cases use of Relevanssi cannot be recommended.
<h4>Key features</h4>
<ul>
<li>Search results sorted in the order of relevance, not by date.</li>
<li>Fuzzy matching: match partial words, if complete words don’t match.</li>
<li>Find documents matching either just one search term (OR query) or require all words to appear (AND query).</li>
<li>Search for phrases with quotes, for example “search phrase”.</li>
<li>Create custom excerpts that show where the hit was made, with the search terms highlighted.</li>
<li>Highlight search terms in the documents when user clicks through search results.</li>
<li>Search comments, tags, categories and custom fields.</li>
<li>Multisite friendly.</li>
<li>bbPress support.</li>
<li>Gutenberg friendly.</li>
</ul>
<h4>Advanced features</h4>
<ul>
<li>Adjust the weighting for titles, tags and comments.</li>
<li>Log queries, show most popular queries and recent queries with no hits.</li>
<li>Restrict searches to categories and tags using a hidden variable or plugin settings.</li>
<li>Index custom post types and custom taxonomies.</li>
<li>Index the contents of shortcodes.</li>
<li>Google-style “Did you mean?” suggestions based on successful user searches.</li>
<li>Support for <a href="http://wpml.org/" rel="nofollow ugc">WPML multi-language plugin</a> and <a href="https://wordpress.org/plugins/polylang/" rel="ugc">Polylang</a>.</li>
<li>Support for <a href="http://www.s2member.com/" rel="nofollow ugc">s2member membership plugin</a>, <a href="https://wordpress.org/plugins/members/" rel="ugc">Members</a>, <a href="https://wordpress.org/plugins/groups/" rel="ugc">Groups</a>, <a href="https://wordpress.org/plugins/simple-membership/" rel="ugc">Simple Membership</a> and other membership plugins.</li>
<li>Advanced filtering to help hacking the search results the way you want.</li>
<li>Search result throttling to improve performance on large databases.</li>
<li>Disable indexing of post content and post titles with a simple filter hook.</li>
</ul>
<h4>Premium features (only in Relevanssi Premium)</h4>
<ul>
<li>Indexing attachment content (PDF, Office, Open Office).</li>
<li>Improved spelling correction in “Did you mean?” suggestions.</li>
<li>Searching across multiple sites in the same multisite installation.</li>
<li>Search and index user profiles.</li>
<li>Search and index taxonomy term pages (categories, tags, custom taxonomies).</li>
<li>Search and index arbitrary columns in wp_posts MySQL table.</li>
<li>Assign weights to any post types and taxonomies.</li>
<li>Assign extra weight to new posts.</li>
<li>Let the user choose between AND and OR searches, use + and – operator (AND and NOT).</li>
<li>Export and import settings.</li>
<li><a href="https://www.relevanssi.com/user-manual/wp-cli/" rel="nofollow ugc">WP CLI commands</a>.</li>
<li><a href="https://www.relevanssi.com/knowledge-base/related-posts/" rel="nofollow ugc">Related posts</a>.</li>
<li><a href="https://www.relevanssi.com/user-manual/redirects/" rel="nofollow ugc">Redirects for searches</a>.</li>
</ul>
<h3>Thanks</h3>
<ul>
<li>Cristian Damm for tag indexing, comment indexing, post/page exclusion and general helpfulness.</li>
<li>Marcus Dalgren for UTF-8 fixing.</li>
<li>Warren Tape for 2.5.5 fixes.</li>
<li>Mohib Ebrahim for relentless bug hunting.</li>
<li>John Calahan for extensive 4.0 beta testing.</li>
</ul>

Relevanssi – A Better Search

I cannot understand why Relevanssi does not have more active installs, since the years it's the best plugin to sort the WP search results by Relevancy.

I would like to see 1 million installs soon, it deserves.

Best Plugin to improve the WordPress Search Engine

I rarely find a plugin that does exactly what I need, clearly and efficiently (therefore, I usually build it myself). The various but smooth settings allow a perfect fine tuning: nothing more and nothing less than what is really needed. My compliments!

Just perfect!

Relevanssi replaces the default search with a partial-match search that sorts results by relevance. It also indexes comments and shortcode content.

Ansera.AI

Ansera Search replaces the default WordPress search with an intuitive AI powered answer engine based on your site’s existing content.
We all know that when website visitors can’t find the answers they’re looking for, they will leave in frustration never to return. Traditional website search just returns a list of links for visitors to sort through themselves while most chatbot solutions are annoying and require significant set up.
Ansera solves for these issues and more by providing your website visitors with human readable natural language search responses based only on your site’s content.
Unlike traditional website search tools, Ansera can be up and running in as little as 5 minutes by even the least technical users. Once you install Ansera on your site, all you have to do is select the pages you want to train it to answer on. Additionally, you can link to externally stored content like youtube and vimeo videos or presentations.
Ansera’s analytics let you see what answers your users are actually seeking and how to improve your content and conversion to better serve them.
Features: 
– Out of the box set up while also providing several visual customization options for more advanced users 
– Human readable natural language search results 
– Real-time sync that updates answers as site content is updated 
– User analytics for all search queries 
– Customizable guiding questions 
– Visitors can email results to themselves 
– Integrate a custom lead generation form into the Ansera widget
Bring conversational AI search to your site in minutes – no coding required!
<h3>Privacy</h3>
This plugin uses the following third-party services to provide its functionality:
<ol>
<li>
Google reCAPTCHA v3 – Used to detect and prevent spam/bot traffic. It collects user interaction data for verification. See <a href="https://policies.google.com/privacy" rel="nofollow ugc">Google’s Privacy Policy</a> and <a href="https://policies.google.com/terms" rel="nofollow ugc">Terms of Service</a>. reCAPTCHA v3 works by collecting hardware and software information, such as device and application data, and sending it to Google to analyze whether a user is human. This process is automatic and invisible to users. This feature will be enabled after you provide Google ReCaptch V3 api credentials.
</li>
<li>
api.ipify.org API – Used to determine user geolocation based on IP address. See <a href="https://geo.ipify.org/privacy-policy" rel="nofollow ugc">geo.ipify.org Privacy Policy</a> and <a href="https://geo.ipify.org/terms-of-service" rel="nofollow ugc">Terms of Service</a>. Whenever user asks the question in the searchbox, we will call this api and fetch that user’s ip address. We are not passing any customer information to the api server.
</li>
<li>
api.ansera.ai – This is the API server of the Ansera.ai platform. It receives content submitted by the WordPress admin from the plugin’s settings page and returns AI-generated responses. ON plugin activation wordpress pages will be sent to Ansera website. WordPress Administrator/Editor can manage sync/unsyc the posts from plugin settings page. See <a href="https://portal.ansera.ai/privacy.html" rel="nofollow ugc">www.Ansera.ai Privacy Policy</a> and <a href="https://portal.ansera.ai/terms.html" rel="nofollow ugc">Terms of Service</a>.
</li>
<li>
dashboard.ansera.ai — Used to render analytics dashboards based on data collected by the <code>api.ansera.ai</code> service. It does not collect or access any data from the WordPress site itself. See <a href="https://portal.ansera.ai/privacy.html" rel="nofollow ugc">www.Ansera.ai Privacy Policy</a> and <a href="https://portal.ansera.ai/terms.html" rel="nofollow ugc">Terms of Service</a>.
</li>
<li>
ansera-cdn.s3.us-east-1.amazonaws.com — Ansera developed a CDN javascript library and published it to Amazon S3 storage engine. This plugin renders the Ansera CDN from Amazon S3 bucket. Complete frontend UI will be rendered from this Javascript CDN library. See <a href="https://portal.ansera.ai/privacy.html" rel="nofollow ugc">www.Ansera.ai Privacy Policy</a> and <a href="https://portal.ansera.ai/terms.html" rel="nofollow ugc">Terms of Service</a>. See <a href="https://aws.amazon.com/privacy/" rel="nofollow ugc">aws.amazon.com Privacy Policy</a> and <a href="https://aws.amazon.com/service-terms/" rel="nofollow ugc">Terms of Service</a>.
</li>
</ol>
No personal information is stored by the plugin itself, but IP addresses may be transmitted to external APIs.
<h3>Plugin Upgrade Permission Issues</h3>
If you see a “folder permission” or “update failed” error while upgrading this plugin, it means WordPress does not have permission to replace the existing plugin folder. This issue occurs due to file/folder permissions or ownership on the server.
Please follow the steps below or share them with your hosting provider:
<ol>
<li>
Ensure the following recommended WordPress permissions:
<ul>
<li>Folders: 755</li>
<li>Files: 644</li>
</ul>
</li>
<li>
Verify that all WordPress files are owned by the web server user:
<ul>
<li>www-data (Ubuntu/Debian)</li>
<li>apache (CentOS/RedHat)</li>
</ul>
</li>
<li>
Ask your hosting provider to correct ownership and permissions using: 
chown -R : /path/to/wordpress/ 
find /path/to/wordpress/ -type d -exec chmod 755 {} \; 
find /path/to/wordpress/ -type f -exec chmod 644 {} \;
</li>
<li>
Make sure no security plugins or hosting rules are blocking file deletion during updates.
</li>
<li>
If your hosting requires FTP credentials for updates, enter them in: 
WordPress Admin → Updates → Enter FTP details.
</li>
</ol>
If the issue continues, please contact your hosting provider and ask them to “fix WordPress file permissions and ownership.” This will resolve the problem in most cases.

Ansera Search

Ansera AI-powered search plugin provides answers based on your existing Wordpress content. Smarter than search, simpler than a chatbot

Relevanssi – A Better Search vs Ansera Search