How do I change my site metadata such as favicon, site title, meta description, or OG image?

Click the Publish button → your published site's settings to customize site metadata including favicon, browser tab title, meta description, and OG image. The site icon also controls the published root favicon (/favicon.ico), which browsers and search engines may use. Lovable adds basic meta tags by default, but you should customize them for SEO and shareability. After editing, publish the update.