Surrogate-Key

HTTP response header

Header usage statistics

Surrogate-Key response header information and usage statistics.

Websites using header Surrogate-Key2,907
Percentage of websites that use Surrogate-Key header<0.1%
Total discovered header values2,348
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country US

Surrogate-Key Directives

Surrogate-Key directives value information and usage statistics

DirectiveShareWebsites countUnique Values

Distribution by websites popularity

Surrogate-Key detection in the top websites by popularity

Top 10k sites10 websites
Top 100k sites64 websites
Top 1m sites346 websites

Websites utilizing Surrogate-Key

List of websites that use Surrogate-Key header

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Geographical Distribution

Header usage distribution by websites across the globe.






Common header values

List of top common Surrogate-Key header values

Header valueValue prevalence
tm-front_page3.58%
text/html1.44%
wp wp200 desktop desktop200 home home200 pages pages200 type_page type_page200 2001.20%
application text/html application:contact1.03%
pwa-ssr0.96%
mirror-isc0.65%
mirror-csail0.65%
home0.48%
klecker0.45%
front home0.41%
front post-2 post-user-1 single0.41%
front post-6 post-user-1 single0.41%
all error0.38%
front post-4 post-user-1 single0.34%
tm-home0.34%
redirect0.34%
front post-5 post-user-1 single0.28%
polyfill-service, polyfill-service-website0.24%
main_app_home_page0.24%
p-7 tm-page0.24%