Search engine optimization is the art and science of making web pages attractive to web search engines. Some interne t businesses consider search engine optimization to be the subset of search engine marketing.
In the middle of the 1990s webmasters and search engine content providers started optimizing websites. At the time all the webmasters had to try and do was give a URL to a research engine and a internet crawler would be sent from the search engine. The net crawler would extract link from the webpage and use the information to index the page by down loading the page and then storing it on the search engines server. Once the page was stored on the search engines server a second program, known as an indexer, extracted further info from the webpage, and determines the burden of specific words. When this was complete the page was ranked.
It didn't take very long for people to understand the importance of being highly ranked.
In the start search engines used search algorithms that webmasters provided concerning the internet pages. It didn't take webmasters very long to start abusing the system requiring search engines to develop a more refined kind of search engine optimization. The search engines developed a system that thought-about many factors; domain name, text at intervals the title, URL directories, term frequency, HTML tags, on page key word proximity, Alt attributes for images, on page keyword adjacency, text within NOFRAMES tags, net content development, sitemaps, and on page keyword sequence.
Google developed a new concept of evaluating internet internet pages called PageRank. PageRank weighs a net page's quantity and quality based on the pages incoming links. This methodology of search engine optimization was thus successful that Google quickly began to enjoy successful word of mouth and consistent praise.
To assist discourage abuse by webmasters, several web search engines, like Google, Microsoft, Yahoo, and Ask.com, can not disclose the algorithms they use when ranking web pages.The signals used these days in search engine optimization typically are; keywords within the title, link popularity, keywords in links pointing to the page, PageRank (Google), Keywords that seem within the visible text, links from on page to the inner pages, and putting punch line at the prime of the page.
For the foremost part registering a webpage/website on a probe engine could be a simple task. All Google requires could be a link from a website already indexed and also the web crawlers will visit the positioning and start to spider its contents. Normally a few days once registering on the search engine the main search engine spiders can begin to index the website.
Some search engines can guarantee spidering and indexing for a tiny fee. These search engines do not guarantee specific ranking. Webmaster's who don't wish internet crawlers to index bound files and directories use a standard robots.txt file. This file is located in the foundation directory. Sometimes a internet crawler will still crawl a page whether or not the webmaster has indicated he will not would like the page indexed.
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