DXOMARK is a commercial website described as "an independent benchmark that scientifically assesses smartphones, lenses and cameras".

[2][3] Founded in 2008, DXOMARK was originally owned by DxO Labs,[4] a French engineering and consulting company, which is headquartered in Boulogne-Billancourt, Paris, France.

[9] The overall score is a confidential combination of three sub-scores:[9][10] Another metric, the Perceptual MegaPixel (P-MPix), defined as 'the unit of a sharpness measurement', is used to rate the resolution a camera produces when paired to a particular lens.

[11] DXOMARK claims that P-MPix is a more accurate and relevant value for photographers to consider than alternate measures of sharpness when evaluating camera and lens image quality.

[19][20][21] A major update was made in September 2017, adding tests designed to stress the capabilities of current-model smartphones, including those with dual lenses; such as lower-light shooting, telephoto zoom, depth effect, and bokeh.

DXOMARK's tests are conducted by the company's technical staff under a variety of lighting conditions; ranging from low-light 1 Lux, to bright daylight outdoors.

[27] For DXOMARK Selfie Photo, there are sub-scores for Exposure, Colour, Focus, Texture, Noise, Artifacts, Flash, and Bokeh.

For DXOMARK Selfie Video, sub-scores include Exposure, Colour, Focus, Texture, Noise, Artifacts, and Stabilisation.

Customized music clips, created by DXOMARK in collaboration with professional musicians and recording studios, include those in the styles of jazz, hip-hop, classical, pop, rock, Latin, electronic, and alternative genres.

[38] DXOMARK ratings are often used by the press to describe the image quality characteristics of their cameras and mobile devices.