Distribution of site elements among websites that use PNG

This diagram shows the percentages of websites using various site elements among the sites that use PNG. See technologies overview for explanations on the methodologies used in the surveys.

How to read the diagram:
CSS is used by 96.1% of all the websites that use PNG as image file format.

CSS

96.1%

Compression

89.1%

Default protocol https

88.3%

40.3%

Default subdomain www

36.8%

HTTP/3

33.2%

HTTP/2

30.7%

HTTP Strict Transport Security

28.0%

27.1%

21.9%

9.3%

0.1%

W3Techs.com, 13 June 2025

Percentages of websites using various site elements among the sites that use PNG
Note: a website may use more than one site element

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Technology Brief
PNG
Category: Image File Formats
PNG (Portable Network Graphics) is a lossless compression image format, suitable to store graphics with uniformly colored areas, and originally introduced as a free, open-source successor of GIF.
Website: w3.org/...

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