For understanding anything first you must start with “What is it?” and “Why we use it?” then move on to next level. Here we are discussing about SEO.
SEO stands for Search Engine Optimization. Search Engine Optimization (SEO) is the process of affecting the visibility of a website or a web page in a search engine’s “natural” or un-paid (“organic”) search results.
SEO services help your site Rank better in the search engines organically. Better ranking in relevant terms will drive more traffic to your site, creating the ability for better exposure and revenue streams.
Search Engine Optimization is completely depends on Search Engines so it is necessary that if we want to become a SEO Expert then we should know about what is search engine?, how search engines works?
Web Search Engine is a software system that is designed to search for information on the World Wide Web.
Today we have no. of Search Engines therefore we target that Search Engines which most used by audiences. Google, Yahoo, Bing are most used search engine where “Google” is top most used search engine and we can say that “Google” is the King of all Search Engines. If I am not wrong then 70% to 80% search engine user use “Google” and only 30% to 20% search engine user use other search engines.
Other most used Search Engines:
Ask, AOL Search, WOW, WebCrawler, MyWebSearch, Infospace, Info, Dogpile, DuckDuckGo, Blekko, Contenko, Alhea
Search Engine has two major functions – Crawling & building an index, and providing answers by calculating relevancy & serving results.
The Search Engines read the complete source code of whole new & old websites using CRAWLER software and store all data in their Local Server that technique is known as CRAWLING After that INDEXER take the data from local server which is crawl by CRAWLER and arrange the data in INDEXES like Hotels, Hospitals, Schools etc. and store in Main Server. Then RANK Algorithms are programs which are used to give RANKING to website which is based on website data. If user send query request through browser then search engine shows the SERP using RANK Algorithms these RANK Algorithms change randomly in search engine systems.