Surrogate-Control

HTTP response header

The Surrogate-Control response header allows origin servers to dictate how surrogates should handle response entities with control directives. Currently defined directives control processing and cache behavior

Header usage statistics

Surrogate-Control response header information and usage statistics.
Websites using header Surrogate-Control14,273
Percentage of websites that use Surrogate-Control header<0.1%
Total discovered header values228
Header uses directivesNo
Header values are unique or randomNo
Most popular in the country United States

Surrogate-Control Directives

Surrogate-Control directives value information and usage statistics
DirectiveShareWebsites countUnique Values

Websites utilizing Surrogate-Control

List of websites that use Surrogate-Control header
DomainCountryRankContacts
www.meetup.com United States773
www.irs.gov United States829
whois.gandi.net France836
ispsystem.com United States1,103
www.ispsystem.com Germany1,103
www.ssa.gov United States1,693
See full domain list

Common header values

List of top common Surrogate-Control header values
Header valueValue prevalence
no-store30.77%
no-store, content="BigPipe/1.0"28.36%
max-age=120011.45%
max-age=36008.58%
ESI/1.04.42%
max-age=86400, stale-while-revalidate=86400, stale-if-error=864001.64%
max-age=601.53%
max-age=864001.52%
max-age=3000.95%
public, max-age=864000.83%
content="ESI/1.0"0.80%
content=SSI/1.00.56%
content="ORAESI/9.0.4" max-age=150.41%
varnish=ESI/2.10.39%
max-age=25920000.31%
no-cache0.28%
ESI/2.10.25%
max-age=3600, public0.24%
content="ORAESI/9.0.4"0.24%
content="ESI/1.0",no-store0.22%