How Google search engine actually Works 2020

How Google search engine actually Works 2020

How Google search engine actually Works 2020

Every day, billions of people come here withquestions – about all kinds of things.Sometimes we even get questions about Google search itself – like,and while this is a subject entire books have been written about, there’s a good chance you’re in the market for something a little more concise.So, let’s say it’s getting close to dinnerand you want a recipe for... lasagna.You’ve probably seen this before.But let’s go a little deeper.Since the beginning, back when the homepagelooked like this, Google has been continuously mapping the web - hundreds of billions of pages - to create something called an index.Think of it as the giant library we look throughwhenever you do a search for lasagna or anything else.Now the word lasagna shows up a lot on theweb: pages about the history of lasagna, articles by a scientist whose last name happened to be “Lasagna” stuff other people might be looking for.But, if you’re hungry, randomly clickingthrough millions of links is no fun.This is where Google’s ranking algorithmscome into play: first, they try to understandwhat you’re looking for, so they can behelpful even if you don’t know exactly theright words to use, or if your spelling isa little off.Then they sift through millions of possiblematches in the index, and automatically assemble a page that tries to put the most relevant information up top, for you to choose from.Ok, now we have some results.But how did the algorithms actually decidewhat made it onto the first page?There are hundreds of factors that go intoranking search results, so let’s talk abouta few of them:You may already know that pages containing the words you searched for are more likelyto end up at the top – no surprise there.But the location of those words, like, inthe page’s title, or in an image’s caption those are factors too.There’s a lot more to ranking than justwords.Back when Google got started, we looked athow pages linked to each other to better understand what pages were about and how important and trustworthy they seemed.Today, linking is still an important factor.Another factor is location – where a searchhappens – because if you happen to be inOrmea, Italy, you might be looking for information about their annual lasagna festival, but if you’re in Omaha, Nebraska, you probably aren’t.When a webpage was uploaded is an important factor too – pages published more recently often have more accurate information, especiallyin the case of a rapidly developing news story.Of course, not every site on the web is tryingto be helpful.Just like with robocalls on your phone orspam in your email, there are a lot of sitesthat only exist to scam, and every day, scammers upload millions more of them.So just because instantvirusdownload.net lists the words “lasagna recipe” 400 times,that doesn’t mean it’s going to help youmake dinner.We spend a lot of time trying to stay onestep ahead of tricks like these, making sureour algorithms can recognize scam sites and flag them before they make it to your Search results page.So, let’s review: billions of times a day,whenever someone searches for lasagna, or“resume writing tips” or “how to swaddlea baby” or anything else, Google’s softwarelocates all the potentially relevant resultson the web, removes all the spam, and ranks them based on hundreds of factors like keywords,links, location, and freshness.Ok.Good time to take a breath.This last part is about how we make changesto search, and it’s important.Since 1998, when Google went online, peopleseem to have found our results pretty helpful.But, the web is always changing, and peopleare always searching for new things –So, we’re always working on updates to Search thousands every year.Which brings up a big question:helpful?Well, one of the ways we evaluate potentialupdates to Search is by asking people likeyou.Every day, thousands of Search Quality Raterslook at samples of search results side-by-side,then give feedback about the relevance and reliability of the information.To make sure those evaluations are consistent,the raters follow a list of Search Quality evaluator Guidelines.Think of them as our publicly available guide to what makes a good result... good.Oh, and one: we useresponses from Raters to evaluate changes,but they don’t directly impact how Searchresults are ranked.So, there you have it: every time you click“search”, our algorithms are analyzingthe meaning of the words in your search, matchingthem to content on the web, understandingwhat content is most likely to be helpfuland reliable, and then automatically puttingit all together in a neatly organized pagedesigned to get you to the info you need.Thank you for reading this article and please share this article with your friends and family and in your WhatsApp groups it will help me a lot And also subscribe to our newsletter it's free