…and so on. Those functions cannot access anything outside the WordPress installation, whether it’s another WordPress installation, HTML files or external databases. If you still need this… If you really must have Relevanssi access outside data, there’s one way to achieve that: import the data inside your WordPress installation. Create……the WordPress sites must be part of the same installation. It’s not possible to search content that exists in another WordPress installation, not even if it’s on the same server. No outside content Relevanssi is heavily dependent on WordPress methods. When getting posts, Relevanssi uses the get_post() function in WordPress…Short answer: no. Relevanssi can only access WordPress content. For a longer answer, read on. Only within single WP installation Relevanssi only operates within one WordPress installation. Relevanssi Premium supports multisite searching, where the search can return posts from more than one subsite at once, but even in those cases…