In web analytics and website management, a pageview or page view, abbreviated in business to PV and occasionally called page impression, is a request to load a single HTML file (web page) of an Internet site. On the World Wide Web, a page request would result from a web surfer clicking on a link on another page pointing to the page in question. In contrast, a hit refers to a request for any file from a web server. Therefore, there may be many hits per page view since an HTML page can contain multiple files such as images, videos, JavaScripts, cascading style sheets (CSS), etc. On balance, page views refer to a number of pages viewed or clicked on the site during the given time. Page views may be counted as part of web analytics. For the owner of the site, this information can be useful to see if any change in the "page" (such as the information or the way it is presented) results in more visits. If there are any advertisements on the page, the publishers would also be interested in the number of page views to determine their expected revenue from the ads. For this reason, it is a term that is used widely for Internet marketing and advertising. Feature The page impression has long been a measure of user activity on a website. However, the activity is not necessarily associated with loading a complete HTML page. Modern programming techniques can serve pages by other means that don't show as HTTP requests. Advertisement Since page views help estimate the popularity of sites, it helps determine their value for advertising revenue. The most common metric is CPM. It stands for 'Cost per thousand'(the M is the Roman numeral for 1,000) and it is commonly used metrics to measure page views divided by the thousands, that is, cost per 1000 views, used for the ad rates and thus, the less CPM is, the better deal it offers to advertisers. However, there has been a growing concern that CPM is not as trustworthy as it looks in the advertising market because, although, with CPM arrangement, everyone who visits a site makes publishers’ money, for an advertiser's view, CPM is being challenged in comparison to CPC or CPA in terms of adverts’ efficiency because visiting does not mean clicking the ads. Measurement The preferred way to count page views is using