$_SERVER['HTTP_CACHE_CONTROL'] and it is saying
no cache even though i have the meta tag:
<meta http-equiv="Cache-control" content="public">
and I've tried this as well
<meta http-equiv="Cache-control" content="cache">
still saying same "No CACHE"
Should I be worried that search engine spider gets same value as
That value refers to the
Cache-Control HTTP header sent in the request, i.e. the client sent this information to you. You have no control over it, but it doesn't have any real influence on your server either.