Provided are a web page previewing method and system. The method comprises: sending a web page previewing request to a middleware server according to a web page previewing triggering instruction; the middleware server loading, according to the web page previewing request, a main document of a web page link requested to be previewed, and typesetting the main document; partially capturing the typeset main document, and uniformly scaling the captured main document according to the screen size of a mobile terminal, to generate a preview picture for the mobile terminal to display. With the present invention, a web page can be rapidly previewed in advance, thereby saving the waiting time of a user.
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