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Technologies > Character Encodings > UTF-8 > by Ranking

Usage of UTF-8 broken down by ranking

This diagram shows the percentages of websites using UTF-8 broken down by ranking. See technologies overview for explanations on the methodologies used in the surveys.

How to read the diagram:
UTF-8 is used by 98.7% of all the websites whose character encoding we know.
UTF-8 is used by 99.1% of all the websites whose character encoding we know and that rank in the top 1,000,000.

Overall
98.7%
top 1,000,000
99.1%
top 100,000
99.2%
top 10,000
99.3%
top 1,000
98.9%
W3Techs.com, 12 June 2025
Percentages of websites using UTF-8 broken down by ranking

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Technology Brief
UTF-8
Category: Character Encodings
UTF-8 (8-bit Unicode Transformation Format) is a variable-length character encoding for Unicode, which is backwards compatible with ASCII.
Website: datatracker.ietf.org/...


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