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A web crawler collects the contents of a web page, which is then indexed by a web search engine. The search engine might make the copy accessible to users. Web crawlers that obey restrictions in robots.txt [2] or meta tags [3] by the site webmaster may not make a cached copy available to search engine users if instructed not to.
Bing Webmaster Tools (previously the Bing Webmaster Center) is a free service as part of Microsoft's Bing search engine which allows webmasters to add their websites to the Bing index crawler, see their site's performance in Bing (clicks, impressions) and a lot more.
The Bing Bar, a browser extension toolbar that replaced the MSN Toolbar, provides users with links to Bing and MSN content from within their web browser without needing to navigate away from a web page they are already on. The user can customize the theme and color scheme of the Bing Bar and choose which MSN content buttons to display.
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Bing defines crawl-delay as the size of a time window (from 1 to 30 seconds) during which BingBot will access a web site only once. [36] Google ignores this directive, [ 37 ] but provides an interface in its search console for webmasters, to control the Googlebot 's subsequent visits.
They also noted that the problem of Web crawling can be modeled as a multiple-queue, single-server polling system, on which the Web crawler is the server and the Web sites are the queues. Page modifications are the arrival of the customers, and switch-over times are the interval between page accesses to a single Web site.
The most popular video hosting website is YouTube, 2 billion active until October 2020 and the most extensive catalog of online videos. [1] There are some countries in the world placing restrictions on YouTube, instead having their own regional video-sharing websites in its place.
Search engine optimization (SEO) is the process of improving the quality and quantity of website traffic to a website or a web page from search engines. [1] [2] SEO targets unpaid search traffic (usually referred to as "organic" results) rather than direct traffic, referral traffic, social media traffic, or paid traffic.