Cache-Control HTTP response header



Cache-Control response header


Tells all caching mechanisms from server to client whether they may cache this object. It is measured in seconds


Cache-Control header statistics


Highest ranking websitewww.instagram.com
Unique header value countHeader value is randomly generated
Most used header valueprivate, s-maxage=0, max-age=0, must-revalidate
Websites percentage using Cache-Control31.69%


Common Cache-Control header values


Header name Header value Occurence
Cache-Controlprivate, s-maxage=0, max-age=0, must-revalidate9.5%
Cache-Controlprivate8.0%
Cache-Controlno-cache5.3%
Cache-Controlno-store, no-cache, must-revalidate, post-check=0, pre-check=05.0%
Cache-Controlno-store, no-cache, must-revalidate3.9%
Cache-Controlmax-age=6003.2%
Cache-Controlmax-age=0, private, must-revalidate2.8%
Cache-Controlmax-age=10800, must-revalidate2.8%
Cache-Controlprivate, max-age=02.6%
Cache-Controlno-cache, no-store, must-revalidate2.0%


Top websites that use Cache-Control header


www.instagram.comwww.google.comtwitter.comgoogle.com
www.facebook.comwww.dw.complus.google.comwww.theguardian.com
www.reddit.comwww.nytimes.comwww.bbc.comwww.barrons.com
www.cnn.comnews.yahoo.comwww.bloomberg.comwww.cnbc.com
www.yandex.runews.google.comwww.nypost.comwww.washingtonpost.com


Usage by top level domain (TLD)


Header nameTop level domainOccurence
Cache-Controlcom26.3%
Cache-Controlorg8.9%
Cache-Controlnet1.8%
Cache-Controlde1.1%
Cache-Controlio0.9%
Cache-Controledu0.7%
Cache-Controlro0.5%
Cache-Controlco.il0.4%
Cache-Controlpl0.4%
Cache-Controlch0.4%