HTTP Headers That Make Your Website Go Faster

Discover effective techniques to enhance website performance through HTTP headers in this 38-minute conference talk from SREcon23 Europe/Middle East/Africa. Learn how to leverage built-in caching mechanisms within the HTTP protocol to mitigate the impact of traffic spikes and improve user experience. Explore the implementation of these techniques using Varnish Cache as a reverse caching proxy. Gain insights into controlling cached object lifetimes, creating cache variations, performing conditional requests, handling stale data, revalidating expired content, managing errors, and utilizing HTTP placeholders. Apply these strategies to optimize your website's speed and reliability, ultimately preventing customer loss due to slowdowns during high-traffic periods.