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When a search engine visits a site, the robots.txt located in the root directory is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish to crawl.
e. Click-through rate (CTR) is the ratio of clicks on a specific link to the number of times a page, email, or advertisement is shown. It is commonly used to measure the success of an online advertising campaign for a particular website, as well as the effectiveness of email campaigns. [1][2] Click-through rates for ad campaigns vary tremendously.
Discounted cumulative gain (DCG) is a measure of ranking quality in information retrieval. It is often normalized so that it is comparable across queries, giving Normalized DCG (nDCG or NDCG). NDCG is often used to measure effectiveness of search engine algorithms and related applications. Using a graded relevance scale of documents in a search ...
A cost estimate is the approximation of the cost of a program, project, or operation. The cost estimate is the product of the cost estimating process. The cost estimate has a single total value and may have identifiable component values. A problem with a cost overrun can be avoided with a credible, reliable, and accurate cost estimate.
Internet marketing. Local search engine optimization (local SEO) is similar to (national) SEO in that it is also a process affecting the visibility of a website or a web page in a web search engine 's unpaid results (known as its SERP, search engine results page) often referred to as "natural", "organic", or "earned" results. [1]
Search engine marketing (SEM) is a form of Internet marketing that involves the promotion of websites by increasing their visibility in search engine results pages (SERPs) primarily through paid advertising. [1] SEM may incorporate search engine optimization (SEO), which adjusts or rewrites website content and site architecture to achieve a ...
Search analytics. Search analytics is the use of search data to investigate particular interactions among Web searchers, the search engine, or the content during searching episodes. [1] The resulting analysis and aggregation of search engine statistics can be used in search engine marketing (SEM) and search engine optimization (SEO). In other ...
The conference was created by Danny Sullivan, founder and former lead editor of Search Engine Watch. The first [2] SES conference was on November 18, 1999 in San Francisco, California and marked the first [3][4] formal occasion that site owners had met with search engines. The conference expanded internationally in 2000 when the first SES UK ...