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Best results come through best practices combined with great technologies. And without knowing the right path, it's difficult to bring out the desired effect. It goes similar to Search Engine Optimization. You have to know search algorithms, processes, and factors of Google's search-bots to beat the other SERPs.
How Google Search Works
For a typical query, there are thousands, even millions, of webpages with potentially relevant information. So, how does Google figure out what to show in your search results?
Crawling and indexing
Google is using web crawlers to organize information from webpages and other publicly available content in the Search index.
Web crawlers gather information from across hundreds of billions of webpages and organize it in the Search index.
How Search Works - https://www.youtube.com/watch?v=BNHR6IQJGZs
The crawling process begins with a list of web addresses from past crawls and sitemaps provided by website owners. As our crawlers visit these websites, they use links on those sites to discover other pages. The software pays special attention to new sites, changes to existing sites and dead links. Computer programs determine which sites to crawl, how often and how many pages to fetch from each site. Webmasters can control crawling altogether using a file called “robots.txt”
Finding information by crawling
The web is like an ever-growing library with billions of books and no central filing system. We use software known as web crawlers to discover publicly available webpages. Crawlers look at webpages and follow links on those pages, much like you would if you were browsing content on the web. They go from link to link and bring data about those webpages back to Google’s servers.
Organizing information by indexing
When crawlers find a webpage, our systems render the content of the page, just as a browser does. We take note of key signals — from keywords to website freshness — and we keep track of it all in the Search index.
The Google Search index contains hundreds of billions of webpages and is well over 100,000,000 gigabytes in size. It’s like the index in the back of a book — with an entry for every word seen on every web page we index. When we index a web page, we add it to the entries for all of the words it contains.
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