Abstract

                   The Web is evolving very rapidly due to the ease of publishing information. At the same time, the Web is vulnerable to time passage as much new content is created continuously and old content becomes quickly obsolete. It is thus important to distinguish fresh and obsolete content in Web pages. Many web pages contain elements inserted at different time points. Some pages show timestamps or other temporal metadata informing about the creation dates of content elements. The main function of temporal metadata is to inform users about the age of page content. Readers often implicitly utilize this information to better understand the content by correctly locating it on a time scale. It is especially evident in the case of time-sensitive documents. In practice, however, pages often do not offer any clues about the age of their content. The reader has to optimistically think the web page is latest and proceed. In other cases, temporal annotations provided by page authors may sometimes be misleading and should not always be trusted. The web pages that are visited may not be secure as they may contain malicious contents like viruses, worms, spyware, key loggers etc. There has to be some means to find out the security of the web page before using it. In our project, we describe a novel concept for detecting approximate creation dates of content elements in Web pages and measure the security level of the web page visited. To detect the age of a web page we dynamically reconstruct page histories using data extracted from external sources such as Web archives and efficiently search inside them to detect insertion dates of content elements. To measure the security of the web page we check certain security attributes like Security risks, Remote access software, Adware, Spyware, Dialers, Malicious downloads, Drive by downloads, Suspicious browser changes, Phishing attacks, Information stealers, Trojans and Suspicious applications with the help of Security websites that are designed to help users discern safe Web sites from unsafe ones.

Keywords—Web Information Quality, trustworthiness of Information on the Web, quality factors, web Archives, Information age, Information Security.