Correct use of ETag headers for caching

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Rajudh74
Posts: 9
Joined: Sun Dec 22, 2024 3:52 am

Correct use of ETag headers for caching

Post by Rajudh74 »

Use content delivery networks (CDNs): Serve static resources from a CDN to decrease loading times for users in different geographic locations.

Implement lazy loading: Delay loading of non-critical resources until they are needed.

What is

ETag (Entity Tag) headers are part of HTTP, and are used for web cache validation to determine whether the client needs a fresh copy of a resource or can use a cached version.

Why is it important?

Efficient caching: ET tags help browsers cache resources list of indian phone numbers efficiently, reducing server load and bandwidth usage.

Faster loading times: Proper caching speeds up page loading for returning visitors.

Improved user experience: Users benefit from faster access to content, which improves satisfaction and engagement.

Image

How to adapt

Enable ETag headers:

Configure your web server (e.g. Apache, Nginx) to generate accurate ETags.

Ensure consistency across servers:

If you use multiple servers or a CDN, configure ETags to avoid matches that prevent effective caching.

Use strong validation:

Implement strong ETag validation to ensure that resources are only re-downloaded when they have changed.

Monitor and test:

Use tools like Google's PageSpeed ​​Insights to check ETag configuration and effectiveness.

3. Server response time less than 200 ms
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