HTTP response header

Header usage statistics

ssl response header information and usage statistics.

Websites using header ssl38,888
Percentage of websites that use ssl header<0.1%
Total discovered header values8
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

ssl Directives

ssl directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Distribution by websites popularity

ssl detection in the top websites by popularity

Top 10k sites1 websites
Top 100k sites14 websites
Top 1m sites260 websites

Websites utilizing ssl

List of websites that use ssl header

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Geographical Distribution

Header usage distribution by websites across the globe.

Common header values

List of top common ssl header values

Header valueValue prevalence
Strict-Transport-Security: max-age=31536000; includeSubdomains; preload99.95%
Content-Security-Policy: upgrade-insecure-requests0.00%
Lets Encrypt0.00%