The colour (color) of links?

[averageguy]

A link, that is displayed in a post, is blue if I have NOT clicked on it but if I HAVE clicked on it then it is purple, how does the system know?

 

[freeones_regina]

That is standard browser behaviour

 

[Roald]

you see that webcam in front of you? Thats how we know.

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you see that webcam in front of you? Thats how we know.