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Technologies > Image File Formats > ICO > by Character Encodings

Usage of ICO broken down by character encodings

This diagram shows the percentages of websites using ICO broken down by character encodings. See technologies overview for explanations on the methodologies used in the surveys.

How to read the diagram:
ICO is used by 0.2% of all the websites.
ICO is used by 0.2% of all the websites that use UTF-8 as character encoding.

Overall

0.2%

0.2%

0.2%

0.3%

0.5%

0.1%

less than 0.1%

0.3%

0.1%

0.3%

0.3%

0.1%

0.3%

0.1%

0.3%

0.3%

0.1%

0.2%

0.2%

0.3%

0.1%

0.2%

0.2%

0.7%

0.4%

4.2%

W3Techs.com, 14 June 2025

Percentages of websites using ICO broken down by character encodings

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Technology Brief
ICO
Category: Image File Formats
ICO is an image file format for computer icons, originally used in Microsoft Windows, on the Web often used for favicons.
Website: learn.microsoft.com/...

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