.htaccess - Protecting a html page from access (except for redirected users) -

i have html page information signup form redirect traffic see. when users sign redirected there, dont want finds out page accessing it.

for example

www.buyshoes123.com has sign form, , when users sign up, they'll automatically redirected to;

www.buyshoes123.com/discount.html

is there way hide discount.html page else redirected users? example, if user decides copy-paste address , give colleague, how can prevent displaying?

i don't think cookie solution mentioned in comment enough here. dealing here in general identity management. registration should result in identity creation registering user , start managed (logged in) session. then, on protected page, must check identity , session. have to utilise server side scripting achieve this.