[squid-users] How does squid actually work?

[Richard Sumilang]

My idea of how squid works is when you visit a website for the first 
time (google.com) it will download all the images and html code into 
cache and when you go back to the site in the future it will check if 
it has been modified and if since last time you loaded it and if so 
then load then refresh the cache when the newer copy else load the 
version in the cache. Is this correct? Perhaps there is some 
documentation I don't see with how it works?

Thanks
- Richard S.