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Segmentation

Technologies > Site Elements > CSS > by Character Encodings

Usage of CSS as site element broken down by character encodings

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

How to read the diagram:
CSS is used by 96.9% of all the websites.
CSS is used by 97.1% of all the websites that use UTF-8 as character encoding.

Overall
96.9%
UTF-8
97.1%
ISO-8859-1
94.9%
Windows-1252
95.5%
Windows-1251
97.4%
EUC-JP
98.8%
Shift JIS
90.1%
EUC-KR
95.1%
GB2312
95.3%
Windows-1250
96.4%
ISO-8859-2
96.5%
Big5
94.6%
ISO-8859-15
97.9%
ISO-8859-9
97.0%
US-ASCII
95.4%
GBK
94.6%
Windows-1254
96.7%
Windows-874
97.3%
Windows-1256
92.8%
Windows-1255
97.1%
TIS-620
96.4%
UTF-16
98.3%
ISO-8859-7
93.2%
Windows-1253
95.5%
GB18030
97.4%
Windows-1257
96.1%
KOI8-R
89.8%
ISO-8859-4
100.0%
KS C 5601
95.6%
ISO-2022-JP
85.8%
UTF-7
54.6%
ISO-8859-8
97.5%
ISO-8859-5
91.4%
Windows-31J
85.7%
ISO-8859-6
100.0%
KOI8-U
89.3%
Windows-1258
95.2%
ISO-8859-16
100.0%
ANSI_X3.110-1983
77.8%
ISO-8859-3
100.0%
ISO-8859-13
100.0%
Big5 HKSCS
100.0%
W3Techs.com, 11 March 2026
Percentages of websites using CSS broken down by character encodings

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Technology Brief
CSS
Category: Site Elements
Cascading Style Sheets (CSS) is a mechanism for adding style (e.g. fonts, colors, spacing) to web pages.
Website: w3.org/...


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