Google Search or Google Web Search is a web search engine owned by Google Inc. and is the most-used search engine on the World Wide Web. The main purpose of Google Search is to hunt for text in webpages, as opposed to other data, such as with Google Image Search.

Search Console lets you easily monitor and in some cases resolve server errors, site load issues, and security issues like hacking and malware. You can also use it to ensure any site maintenance or adjustments you make happen smoothly with respect to search performance.

The main purpose of Google Search is to search for text in publicly accessible documents offered by web servers, as opposed to other data, such as images or data contained in databases. It was originally developed in 1997 by Larry Page, Sergey Brin, and Scott Hassan.

Software: Google Voice Search, Google Accou…

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Industry: Search engine

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Search engines work by crawling hundreds of billions of pages using their own web crawlers. These web crawlers are commonly referred to as search engine bots or spiders. A search engine navigates the web by downloading web pages and following links on these pages to discover new pages that have been made available.

Google follows three basic steps to generate results –

1 — Crawling –

Crawling is the process used by search engine web to visit and download a page and extract its links in order to discover additional pages. If a search engine detects changes to a page after crawling a page, it will update it’s index in response to these detected changes.

2 — Indexing –

A page is indexed by Google if it has been visited by the Google crawler , analyzed for content and meaning, and stored in the Google index. Indexed pages can be shown in Google Search results.

3 — Ranking –

Ranking refers to the process search engines use to determine where a particular piece of content should appear on a SERP. Search visibility refers to how prominently a piece of content is displayed in search engine results.

Search Engine Processing –

Indexing Process

Indexing process distributed in 3 parts –

* Text acquisition –

It identifies and stores documents for indexing.

* Text transformation –

It transforms document into index terms or features.

* Index creation –

It takes index terms created by text transformations and create data structures to suport fast searching.

Query Process –

Query process distributed in 3 parts –

* User interaction –

It supporst creation and refinement of user query and displays the results.

* Ranking –

It uses query and indexes to create ranked list of documents.

* Evaluation

It monitors and measures the effectiveness and efficiency. It is done offline.

There is some Example’s of some search engine –

GOOGLE, Bing, Asl, AltaVista, etc.

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