php - How do I find out that a link was seen -


i'm trying make page links , when clicks on link, score count go up.

how can find out visitor has really seen page related link? not click link , close page score...

really seen means: page loads completed.

and links opens in new window.

any solution?

you cant see pages aren't in same domain. chrome puts them in separate thread.

back in day have used css exploit talked here: https://developer.mozilla.org/en-us/docs/web/css/privacy_and_the_:visited_selector

if want make page kind of functionality have make browser plugin/extension.


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