Website uptime is crucial for maintaining user trust and SEO rankings. To improve uptime, choose a hosting provider that guarantees at least 99.9% uptime. Consider using high-quality VPS or dedicated hosting instead of shared hosting, as they offer better resources and reliability. Utilize a Content Delivery Network (CDN) to distribute content and reduce server load. Additionally, implement server monitoring tools to detect and address performance issues before they impact uptime. Regularly update your website's software, including CMS platforms, themes, and plugins, to ensure optimal performance and reduce the risk of downtime from security vulnerabilities.