Ryan Moore’s Son’s Race at Newbury: Toby’s Grandad’s First Win?
This is a string of image source URLs generated for responsive images. Let’s break it down:
* Base URL: https://www.racingpost.com/_next/image/?url=https%3A%2F%2Fs3-eu-west-1.amazonaws.com%2Fprod-media-racingpost%2Fprod%2Fimages%2F169_1008%2Fc9e5701b93a4-2500-free-bets-1920x1080.jpg This is the core URL pointing to the original image hosted on an Amazon S3 bucket.
* Variations: The string then lists multiple versions of the same image, each with a different width (w) parameter. Such as:
* &w=64&q=75 64w – A version of the image resized to 64 pixels wide, with a quality of 75.
* &w=1920&q=75 1920w – the original image, resized to 1920 pixels wide, with a quality of 75.
* q=75: This parameter controls the image quality, with 75 being a percentage. Lower values mean smaller file sizes but perhaps lower image quality.
* [width]w: This suffix indicates the width of the image in pixels.
Purpose:
This technique is used for responsive images. The browser will choose the most appropriate image size based on the user’s screen size and resolution. This improves page load times and user experience, especially on mobile devices. Rather of downloading a large 1920px image on a small phone screen, the browser can download the 64px or 384px version.
In essence, this string provides a set of pre-resized images for a single source image, allowing a website to serve the optimal image size to each user.