WHAT IS SEARCH ENGINE?
A search engine is an online portal where everyone can browse their queries called keywords.
It is a software that is usually accessed on the internet, which digs into a database of information on the basis of the query of the user.
Search engines are basically answering machines that regularly scour the internet and websites in order to find the most relevant results to the query entered by the user. Moreover, Now, as the internet is a vast entity and it can be a tedious task to go through all the possible results to find the most relevant results, now what search engines do is organize the information about.
While the webpages in the search index. The index is like a library where all the webpages are indexed with a unique ID that can be referred to while accessing the relevant webpage.
WHO INVENTED THE SEARCH ENGINE?
The very first search engine was founded by ALAN EMTAGE.
WHICH IS THE FIRST SEARCH ENGINE IN THE WORLD?
The first search engine in the history of the was ARCHIE QUERY FORM.
TOP 5 SEARCH ENGINES
However, “Google” the world’s most prominent tool was invented by LARRY PAGE & SERGEY BERN in 1996.
Thereafter, Google is an internet tool that is cultivated to procure & edit search results to deliver the most appropriate & reliable references of data from its keywords. It is available in 123 languages.
- YAHOO
DAVID FILO & JERRY YANG developed Yahoo in 1994.
Moreover, It is one of the biggest, recognized & well-known internet portals.
Yet, Yahoo delivers it courtesies around the world.
ASK.COM
GARRET GRUENER & DAVID WARTHEN started Ask.com in 1996.
However, Ask.com allows the user to conduct a search in the form of queries to discover the most related justifications.
BING
MICROSOFT developed Bing in 2009.
Consequently, Bing delivers a collection of search services containing web, video, pictures & map search.
In other words, Bing is available in 40 languages.
Therefore, It is the second extensively use of it.
YANDEX
ARAKADY VALOZH, ARKADY BORKOVSKY introduced Yandex.
Though Yandex is that is responsive to real-time inquiries & recognizes when a query needs the current information such as breaking news.
How Search Engine Works?
Crawling
Crawling is the process wherein the search engine rolls out spiders or crawlers which are like nanobots that scour the internet and discover publicly available webpages. Crawlers visit a webpage and access all the links present on that page, thus bringing in more information on new pages and follow links. They go from link to link and bring information about those back to the search engine servers.
Indexing
Since, The next activity that takes place is indexing. When crawlers scour a webpage, so it captures certain information like the keywords, the freshness. The refreshes rate and brings back this information to store in the database. However, All this information of all the webpages crawlers visits is indexing uniquely. And stores safely in the database to access whenever it requires. The cached version of the webpage brought in by the crawlers is also indexed with other information about the webpage. You can view the cached version of the webpage by clicking the down arrow next to the URL in the search results and choosing “Cached”. Now, after the crawling and indexing complete. And all the webpage information is present in the database, the search engine is ready to utilize for searching.
Ranking
Now, with the amount of data available on the web, it becomes nearly impossible to find what you need. To remedy this, the page ranking system sorts through hundreds of billions of webpages in the search index. It is to find the most relevant, useful results in a fraction of a second, and present them to the user. It Ranking so by running several search algorithms that compare the keywords from users’ search query. With the search index and picks the most relevant webpages. To give the most suitable information, various factors considered, including the keywords of the query, relevance, and usefulness of pages, source authority, user location, etc.
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