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Technologies > Site Elements > HTTP Strict Transport Security > by Character Encodings

Usage of HTTP Strict Transport Security broken down by character encodings

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

How to read the diagram:
HTTP Strict Transport Security is used by 30.9% of all the websites.
HTTP Strict Transport Security is used by 31.2% of all the websites that use UTF-8 as character encoding.

Overall

30.9%

31.2%

20.9%

11.7%

11.4%

37.9%

4.2%

7.7%

4.3%

9.5%

7.9%

16.1%

21.8%

12.9%

17.2%

12.3%

7.0%

14.0%

10.9%

3.5%

5.0%

44.5%

9.1%

5.5%

12.9%

5.6%

6.9%

3.5%

0.9%

6.2%

6.7%

14.5%

5.6%

2.3%

15.0%

4.8%

11.1%

7.1%

W3Techs.com, 13 June 2025

Percentages of websites using HTTP Strict Transport Security broken down by character encodings

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Technology Brief
HTTP Strict Transport Security
Category: Site Elements
HTTP Strict Transport Security (HSTS) defines a mechanism enabling web sites to declare themselves accessible only via secure connections.
Website: datatracker.ietf.org/...

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