How do you optimize website performance and loading speed?

Sample interview questions: How do you optimize website performance and loading speed?

Sample answer:

To optimize website performance and loading speed, there are several key factors that a Graphic Design/Web Designer should consider:

  1. Optimize Images: Compressing and resizing images is crucial to reduce file sizes without compromising quality. Using image optimization tools or exporting images in the appropriate format (JPEG, PNG, or SVG) can significantly improve loading speed.

  2. Minify HTML, CSS, and JavaScript: Removing unnecessary characters, comments, and whitespace from code files can reduce their size and improve loading speed. Minification tools can automate this process without affecting functionality.

  3. Enable Browser Caching: By setting appropriate caching headers, you can instruct the browser to store certain static files locally. This way, when a visitor returns to your website, the browser can retrieve these files from the cache instead of downloading them again.

  4. Use Content Delivery Networks (CDNs): CDNs store copies of your website on servers around the world. When a user visits your site, the CDN serves the content from the nearest server, reducing latency and improving loading speed.

  5. Optimize CSS Delivery: Ensuring that critical CSS loads first and non-critical CSS loads later can prevent render-blocking and improve the perceived loading speed. Techniques like inlining critical CSS, asynchronous loading, or deferring CSS loading can be implemented.

  6. Minimize HTTP Requests: Reducing the number of HTTP requests by combining CSS and JavaScript files, using CSS sprites, or eliminating unnecessary external resources can significantly improve loading speed.

  7. Impl… Read full answer


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