WordPress offers a unique feature in that it can support multiple virtual websites in one single WordPress installation. They can all share ressources like plugins or themes. But what if you wanted all your websites to share the same search.
You can now using WPSolr.
Add multisite search to your WordPress
Learn how you enable cross-site search for your WordPress websites using WPSolr.
WPSolr is a WordPress search and recommendations plugin. Using it, you can equip any WordPress & Woocommerce website with keyword search, AI search, personalized search and even RAG.