This page aids in testing how various HTTP headers affect how a web page is cached. Click through the combinations of cache headers that you want to test. The counter increases with each request to the server. Then press back in your browser and see what happens. You'll see the old counter values displayed if the page is served from cache. If the browser revalidates the page, the counter increases.
This page was served over HTTPS, switch to plain HTTP instead.
Counter is now: 1
Headers are now:
|Cacheability||no-store||must-revalidate||Expires: -1||max-age=0||Pragma: no-cache|