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views:

20

answers:

0
Q: 

How to poll the popular websites in PHP?

It's springed from this answer:

http://superuser.com/questions/129741/how-does-search-engines-update-indexing-so-soon/129743#129743

BTW,for the servers that's polled,is it the same whether the request is just for polling(header information) or complete web page?

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