ib tutor,tutorial-A Brief History of Search Engine Optimization

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A Brief History of Search Engine Optimization By: Sergey Yasa

Search engine optimization is the art and science of constructing web pages enticing to web search engines. Some interne t businesses contemplate search engine optimization to be the subset of search engine marketing.

In the center of the Nineteen Nineties webmasters and search engine content suppliers started optimizing websites. At the time all the webmasters had to try and do was provide a URL to a groundwork engine and a net crawler would be sent from the search engine. The web crawler would extract link from the webpage and use the data 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, referred to as an indexer, extracted further information from the webpage, and determines the weight of specific words. When this was complete the page was ranked.

It didn't take terribly long for people to understand the importance of being highly ranked.

In the beginning search engines used search algorithms that webmasters provided regarding the net pages. It did not take webmasters very long to start abusing the system requiring search engines to develop a more subtle type of search engine optimization. The search engines developed a system that thought-about several factors; domain name, text inside the title, URL directories, term frequency, HTML tags, on page key word proximity, Alt attributes for pictures, on page keyword adjacency, text inside NOFRAMES tags, web content development, sitemaps, and on page keyword sequence.

Google developed a brand new concept of evaluating internet net pages known as PageRank. PageRank weighs a web page's quantity and quality primarily based on the pages incoming links. This technique of search engine optimization was so successful that Google quickly began to get pleasure from successful word of mouth and consistent praise.

To help discourage abuse by webmasters, several net search engines, like Google, Microsoft, Yahoo, and Ask.com, can not disclose the algorithms they use when ranking net pages.The signals used today in search engine optimization usually 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 inserting punch line at the high of the page.

For the foremost part registering a webpage/web site on a research engine may be a simple task. All Google needs may be a link from a site already indexed and the net crawlers will visit the site and start to spider its contents. Normally some days once registering on the search engine the most search engine spiders can begin to index the website.

Some search engines will guarantee spidering and indexing for a small fee. These search engines do not guarantee specific ranking. Webmaster's who do not wish web crawlers to index certain files and directories use a commonplace robots.txt file. This file is located in the basis directory. Sometimes a web crawler will still crawl a page even if the webmaster has indicated he will not wish the page indexed.