#The internet iceberg levels how to#
Aerospace engineers could find data on how to build safer airplanes. Doctors could access information currently hidden in archived databases about new research and medical procedures. The information locked away in the Deep Web is valuable. Collectively these resources hidden from search engines are called the Deep Web. Subpages on public web servers that are not linked to other pages do not show up in search results, but if someone knows the page URL they can access the page directly by typing it into their browser’s address bar. Hidden pages include unpublished blog posts, forums that force users to log in before they can view the contents and news sites that archive their stories for paid subscribers only after a specific amount of time. While the web is growing constantly, cybersecurity experts know the vast majority of web pages are inaccessible to search engines. These publically viewable pages are part of the Surface Web, but they’re just the tip of an iceberg. Modern search engines like Google, Yahoo and Bing use programs called spiders that crawl the web and find links between the main page on a site and its linked subpages. The development of automated search engines made it much easier for users to find information. It was cumbersome and links were often outdated. In the early days of the web there were no search engines, and people relied on finding information using pages with long lists of HTML links. The World Wide Web is a vast and always changing network of web pages.
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