If Google is not indexing all your pages, it means some pages are not being seen as useful or important. First, check if those pages have good content and are not too similar to others. Duplicate or thin pages are often ignored. Also, make sure your pages are linked properly so Google can find them. A sitemap can help guide search engines. Fast loading and mobile friendly pages also improve crawling. Fixing these areas can increase indexation. What step seems most important when trying to improve page visibility?