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What’s the correct Nginx config for setting cache-control headers and improving server-caching rules?

Asked on Sep 30, 2025

Answer

To optimize server caching and improve performance, configuring Nginx with appropriate cache-control headers is essential. This helps browsers cache resources effectively, reducing load times for returning users.

<!-- BEGIN COPY / PASTE -->
    location ~* \.(js|css|png|jpg|jpeg|gif|svg|ico|woff|woff2)$ {
        expires 30d;
        add_header Cache-Control "public, max-age=2592000, immutable";
    }

    location ~* \.(html)$ {
        expires 1h;
        add_header Cache-Control "public, max-age=3600";
    }
    <!-- END COPY / PASTE -->

Additional Comment:

Use "expires" to specify the duration for which the resource should be cached.
"Cache-Control" with "max-age" defines the maximum time a resource is considered fresh.
"immutable" indicates that the resource will not change, allowing aggressive caching.
Adjust cache durations based on content update frequency and user needs.
Ensure that dynamic content is not cached unless it is safe to do so.

✅ Answered with Core Web Vitals best practices.

Ask any question about Performance here... and get an instant response.

What’s the correct Nginx config for setting cache-control headers and improving server-caching rules?

Asked on Sep 30, 2025

Answer

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