How do you ensure that a website is optimized for performance and loading speed on slow or limited bandwidth connections?
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Sample interview questions: How do you ensure that a website is optimized for performance and loading speed on slow or limited bandwidth connections?
Sample answer:
Techniques to Optimize Website Performance for Slow or Limited Bandwidth Connections:
1. Image Optimization:
– Use compressed image formats (JPEG for photos, PNG for graphics).
– Resize images to appropriate dimensions before uploading.
– Optimize images with tools like TinyJPG or Compressor.io.
2. CSS and JavaScript Optimization:
– Minify CSS and JavaScript files to reduce their size.
– Use CSS sprites to combine multiple images into a single file.
– Defer loading non-essential JavaScript until the page has loaded.
3. Server-Side Optimization:
– Use a content delivery network (CDN) to distribute content across multiple servers.
– Configure server caching to store frequently requested content for faster delivery.
– Implement lazy loading to load content as the user scrolls down the page.
4. Browser Caching:
– Set browser caching headers to instruct browsers to store frequently visited pages and assets.
– Use HTTP 2 and HTTP 3 for improved cachi… Read full answer