Most devices have DPR > 1 and probably > 2.
This means that the Cloudinary image they show uses half the available pixels on each dimensions.
In order to generate the photo for a DPR of 2.0, all you need to do is to set the new
dpr transformation parameter to
For more information on Device Pixel Ratio(DPR): https://cloudinary.com/blog/how_to_automatically_adapt_website_images_to_retina_and_hidpi_devices
Every resizing may cause some blurriness. Regardless, this can be usually corrected with the unsharp mask.
Original Image: https://res.cloudinary.com/demo/image/upload/w_700/front_face.jpg