Powerful and user-friendly instrument that allows you to easily access password-protected sites, search for keywords and filter files by size/type. Browsing a website offline can be easily done if there’s a downloaded copy saved locally or on a portable device, but the difficulty resides in getting all the data in the first place. Web crawlers, or web spiders as they are also known as, have this ability, to create a copy of visited webpages for later reviewing.
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