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Segmentation

Technologies > Site Elements > ETag > by Character Encodings

Usage of ETag as site element broken down by character encodings

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

How to read the diagram:
ETag is used by 26.3% of all the websites.
ETag is used by 26.2% of all the websites that use UTF-8 as character encoding.

Overall

26.3%

26.2%

36.7%

38.9%

12.6%

31.6%

5.6%

64.9%

47.8%

34.9%

25.7%

56.0%

13.3%

17.4%

33.5%

23.9%

22.8%

42.6%

18.0%

19.3%

31.9%

29.3%

38.3%

20.3%

20.4%

47.2%

30.7%

4.4%

17.9%

73.0%

8.7%

33.7%

40.0%

16.3%

29.7%

36.0%

31.8%

5.6%

38.5%

45.5%

60.0%

W3Techs.com, 3 October 2025

Percentages of websites using ETag broken down by character encodings

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Technology Brief
ETag
Category: Site Elements
The ETag (entity tag) is an HTTP header field, that allows a browser to validate a cached web page, and thus may save bandwidth.
Website: w3.org/...

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