How can I optimize page load speed in an ASP.NET Core application?

[ft-dev53]

Body

Hi everyone,

I'm a student working on an ASP.NET Core web application, but I'm facing issues with page load speed. My project has several JavaScript and CSS files, and it also performs complex database queries.

Does anyone have any recommendations or best practices for optimizing page load times in ASP.NET Core? Thank you!

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[BbySharp-dev]

Hello,

Optimizing page load speed in ASP.NET Core is crucial for enhancing user experience. Here are several techniques to consider:

1. Implement Caching
   Response Caching: Use ResponseCache to cache HTTP responses, reducing redundant requests.

In-Memory Caching: Store frequently accessed data temporarily in memory to minimize repeated database calls.

csharp
Copy code
[ResponseCache(Duration = 60)]
public IActionResult Index()
{
return View();
}
2. Enable GZIP Compression
Compress CSS, JavaScript, and HTML files to reduce load times. To enable GZIP in ASP.NET Core, configure it in Startup.cs:

csharp
Copy code
public void ConfigureServices(IServiceCollection services)
{
services.AddResponseCompression();
}

public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
app.UseResponseCompression();
}
3. Minimize HTTP Requests
Combine Files: Consolidate CSS and JavaScript files when possible.
Use a CDN: Serve common libraries like jQuery or Bootstrap from a CDN to reduce server load.
4. Use Asynchronous Programming
Ensure I/O-bound tasks, such as database queries, are handled asynchronously with async and await. This allows ASP.NET Core to handle multiple requests efficiently.
5. Optimize Database Queries
Efficient Querying: Use Include and ThenInclude to load only necessary data.
Database Indexing: Add indexes to frequently queried fields to improve performance.
6. Compress and Optimize Images
Use efficient formats like WebP and resize images appropriately to reduce load time.
7. Use Lazy Loading for Non-Essential Content
For images or content not immediately visible, implement lazy loading to improve initial page speed.