images.tooling.report

srcset generation

Does the service automatically generate srcset for images?

    a child looking into a telescope, pointed upwards

    Introduction

    [srcset](https://developer.mozilla.org/en-US/docs/Web/API/HTMLImageElement/srcset)s can have a huge impact on reducing the amount of wasted bytes target sent on over the wire. It can help make sure that different devices get as large an image needed to look great, without forcing them to download a bunch of extra pixels they can't even render. Just like being able to predictably resize images, offering the ability to automatically create a srcset for developers can have a wonderful performance impact for a site.

    The Test

    Testing was an examination of documentation for each service to see if cropping was an available feature. If it did exist, its functionality was confirmed.

    Conclusion

    akamai

    As a general image CDN, srcset generation isn't considered applicable to Akamai. However, they do use srcsets within their Akamai Viewer.

    bigCartel
    cloudflare

    As a general image CDN, srcset generation isn't considered applicable to Cloudflare.

    cloudinary

    As a general image CDN, srcset generation isn't considered applicable to Cloudinary. They do offer a Responsive breakpoint generator that can be used to calculate the optimal number of versions needed for images.

    ecwid
    fastly

    As a general image CDN, srcset generation isn't considered applicable to Fastly.

    goDaddy
    imageEngine

    As a general image CDN, srcset generation isn't considered applicable to ImageEngine.

    imaginary

    As a general purpose image proxy, srcset generation isn't considered applicable to Imaginary.

    imgix

    As a general image CDN, srcset generation isn't considered applicable to Imgix.

    imgproxy

    As a general purpose image proxy, srcset generation isn't considered applicable to imgproxy.

    optimole
    shopify
    shortPixel
    smush
    squarespace
    thumbor

    As a general purpose image proxy, srcset generation isn't considered applicable to thumbor.

    webflow
    weebly
    wix

    Some tools have srcset generation, but many themes lack it.

    "Smart" cropping
    Can important parts of the image be automatically detected to crop images in a more aesthetically pleasing manner?