Latency and caching are crucial for enhancing user experience on apps and websites by ensuring pages load quickly, ideally in under a second. Koyeb offers a global edge network with a built-in CDN, assisting in reducing loading times through caching and TLS termination, but emphasizes the importance of managing Cache-Control HTTP headers, which dictate caching policies. These headers are vital for configuring how content is cached across the internet and end-user devices, with directives in HTTP 1.1 offering more nuanced control over cached content compared to HTTP 1.0. Understanding caching is increasingly important as more internet traffic shifts to latency-sensitive mobile devices. Cache-Control headers allow for better management of caching policies, such as max-age for expiration and stale-while-revalidate for balancing fresh and cached content. Cache invalidation techniques are employed to update content efficiently when changes occur, though they require careful management to avoid unnecessary latency. Koyeb's platform supports these caching practices by providing serverless deployments with global load-balancing, enabling efficient content delivery and scalability.