Made In Chelsea: George Baker “I’ll be using it a lot on my CV” Feature
This is a list of image sources for a responsive image. Let’s break down what it means:
/next/image/?url=https%3A%2F%2Fs3-eu-west-1.amazonaws.com%2Fprod-media-racingpost%2Fprod%2Fimages%2F1691008%2Fc08303b8da11-2000-free-bets-1920x1080.jpg: This is the base URL for the image. It points to an image hosted on an Amazon S3 bucket (s3-eu-west-1.amazonaws.com) belonging to “racingpost“. the actual image file is c08303b8da11-2000-free-bets-1920x1080.jpg. &w=...: This is a query parameter that specifies the width of the image. The server will resize the original image to this width.
&q=75: This is a query parameter that specifies the image quality. A value of 75 indicates a quality level of 75% (lower values mean smaller file sizes but possibly more compression artifacts).
48w, 64w, 96w, ... 2048w: These are the different widths the image is available in. The “w” suffix indicates the width in pixels.
In essence, this is a set of image URLs, each representing the same image but at a different width and quality. This is used for responsive images.
How it effectively works in a website:
A modern website will use this list to choose the most appropriate image for the user’s device and screen size.Such as:
A small mobile phone might load the 48w or 64w image.
A tablet might load the 384w or 640w image.
A desktop computer with a large screen might load the 1920w or 2048w image.
Benefits of this approach:
Faster loading times: Smaller images are downloaded for smaller screens, improving page load speed.
Reduced bandwidth usage: Users on mobile networks save data.
Better user experience: Images are displayed at the optimal size for the device, resulting in a sharper and more visually appealing experience.