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This is bad for search because relevant websites get buried, and it’s bad for legitimate website owners because their sites become harder to find. Today Google’s algorithms rely on more than 200 unique signals which include things like the terms on websites, the freshness of content and our region that make it possible to guess what we might really be looking for.įighting Spam: Spam sites tries to be on the top of search results through techniques like repeating keywords over and over, buying links that pass PageRank or putting invisible text on the screen. Google uses PageRank Algorithm developed by its founders Sergey Brin and Larry Page. When we search, at the most basic level, their algorithms look up our search terms in the index to find the appropriate pages.Īlgorithms: Algorithms are the computer processes and formulas that take our queries and solve them from thousands of webpages with helpful information. The Google index includes information about words and their locations. Google essentially gathers the pages during the crawl process and then creates an index much like the index in the back of a book. The web is like an ever-growing public library with billions of books. Crawlers look at webpages and follow links on those pages and go from link to link and bring data about those webpages back to Google’s servers. The most well-known crawler is called Googlebot.

HOW DO GOOGLE SEARCH ENGINE WORKS SOFTWARE

Google uses software known as Web Crawlers to discover publicly available webpages.

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If the terms you want to be found by do not appear in the text of your website, it will be very difficult for your website to yield high placement in the SERPs. It is difficult to build a Flash site that is as friendly to search engines as a result, Flash sites will tend not to rank as high as sites developed with well coded HTML and CSS (Cascading Style Sheets - a complex mechanism for adding styles to website pages above and beyond regular HTML). Large photos, or dynamic Flash animation mean nothing to search engines, but the actual text on your pages does. Search engines only “see” the text on web pages, and use the underlying HTML structure to determine relevance. More likely, sites using these tricks will be labeled as spam by the search engines and their rankings will plummet. Gimmicks less reputable SEO firms tout as the answer to better site rankings may work at best for only a short period before the search engine’s developers become wise to the tactics and change their algorithm.

HOW DO GOOGLE SEARCH ENGINE WORKS TRIAL

This means that the criteria to best optimize a site with must be surmised through observation, as well as trial and error - and not just once, but continuously. To make things more complicated, the algorithms used by search engines are not only closely guarded secrets, they are also constantly undergoing modification and revision. Each search engine’s algorithm is unique, so a top ranking on Yahoo! does not guarantee a prominent ranking on Google, and vice versa. Search engine algorithms take the key elements of a web page, including the page title, content and keyword density, and come up with a ranking for where to place the results on the pages. The results for a specific query are then displayed on the SERP. How do search engines work?Įvery search engine uses different complex mathematical formulas to generate search results.

The information gathered by the spiders is used to create a searchable index of the Web. Search engines utilize automated software applications (referred to as robots, bots, or spiders) that travel along the Web, following links from page to page, site to site. Popular examples of search engines are Google, Yahoo!, and MSN Search. A search engine is a web-based tool that enables users to locate information on the World Wide Web.