The World Wide Web is used by almost all of us. Hence, it becomes important to know and understand the various terms that are related to it.

1. IMPORTANTTERMS
RELATEDTOTHE WORLD
WIDE WEB

2. TABLE OF CONTENTS
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World Wide Web
Web Browser
Web Server
Web Resources
Web Search Query
Search Engine
Web Crawler
SEO
SERP

3. ◉ The World Wide Web (www), which is also known as the web, refers to an information system in which
Uniform Resource Locators (URLs) identify documents and other web resources. These URLs are accessible
over the Internet and might be interlinked by hypertext. It is the Hypertext Transfer Protocol (HTTP) that
transfers the resources of the web which can be accessed by users via a web browser and are published by a
web server.
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WorldWideWeb

4. ◉ A web browser refers to a software application that is used for accessing information on the World Wide Web.
Every time that a web page from a particular website is requested by a user, it is the web browser that retrieves
the relevant content from a web server and displays the particular page on the device of the user. Every user
needs to install a web browser to connect to a website’s server for displaying its web pages.
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Web Browser

5. ◉ A web server is primarily meant to store, process and deliver web resources to its clients. A web server is a server software
or a system that has one or more computers which run this software and are able to fulfil client HTTP requests over the
Internet and also over private LANs and WANs. It manages client HTTP requests related to web resources that have to do
with one or multiple of its configured/served websites.
◉ Web servers are provided by web hosting companies. The best web hosting companies are often referred to as the “Best
Windows Hosting Company” or the “Best Website Hosting Company” or as the “Top Cloud Hosting Company”.
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Web Server

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1-800-123 -8156
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7. ◉ A web resource, which is also referred to as a resource, denotes any digital, physical or abstract thing that is identifiable.
Uniform Resource Identifiers (URIs) are used to identify resources. A URI is a sequence of characters that is unique and
identifies a physical or a logical resource that is used by web technologies.
◉ The URIs that provide the means to locate and retrieve information resources on a network are referred to as Uniform
Resource Locators (URLs).
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Web Resources

8. A web search query refers to a query that is based on a particular search term that is entered into a web search engine by a
user. Such a query is plain text or hypertext with search-directives that are optional. Web search queries differ significantly from
standard query languages that are governed by syntax rules that are very strict.
There are 3 broad types of web search queries that have been empirically validated.These are mentioned below.
◉ Informational queries – These are the queries which cover broad topics that might have numerous relevant results.
◉ Navigational queries – These are those queries that seek a single website or web page that belongs to an entity.
◉ Transactional queries – These are the queries that reflect a user’s intention with regard to carrying out a certain action.
◉ There is a 4th type of query that is supported by search engines but isn’t used frequently. It is referred to as a Connectivity
query. Connectivity queries report on the connectivity of the indexed web graph.
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Web Search Query

9. ◉ A search engine refers to a software system that performs Internet searches. It searches the Internet for
a specific information in a systematic way. This information is specified in a textual web search query. The
search results get displayed as lines of results which are often referred to as SERPs (Search Engine Results
Pages). The information consists of links to web pages, images, videos etc. Real-time information is
maintained by search engines with the aid of running an algorithm on a web crawler. The Internet content
that cannot be searched by a web search engine is usually referred to as the deep web.
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Search Engine

10. ◉ A web crawler is an Internet bot. It browses the Internet systematically, typically for Web indexing. It is
called a spider or spiderbot as well. Web crawling software is used by web search engines and some
websites for the purpose of updating their web content or other sites’ contents’ indices. Pages are copied
by web crawlers for the purpose of being processed by a search engine that indexes the pages that have
been downloaded to enable a more efficient search by users.
◉ A web crawler’s behavior depends on a combination of certain policies. These are, a selection policy (the
pages to download), a re-visit policy (when to check for changes to pages), a politeness policy (how to
avert overloading sites) and a parallelization policy (how distributed web crawlers can be coordinated).
◉ Resources of the visited system are consumed by crawlers as well as these crawlers visit sites without
approval. Hence, mechanisms have been made available to public sites to make it known to the crawling
agent that such sites do not wish to be crawled.
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Web Crawler

11. ◉ SEO is the abbreviation for Search Engine Optimization. It is meant to improve the quality as well as the
quantity of the traffic to a web page from search engines. It is the unpaid traffic, which is also referred to
as a natural or an organic result that is targeted by SEO and not the direct or paid traffic. Different types
of searches, such as image or video related searches are the origin of unpaid traffic. Since it is an Internet
marketing strategy, SEO takes into account the way search engines function, people’s searches, search
terms (keywords), the most preferred search engines by the target audience as well as those algorithms
which dictate search engine behavior and are computer-programmed.
◉ The purpose of carrying out search engine optimization is based on the fact that a website receives more
traffic through a search engine when it ranks higher on the search engine results page. This traffic has the
potential of being converted into customers.
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SEO

12. ◉ SERP stands for Search Engine Results Pages. These are those pages that get displayed online by search
engines as a response to a particular query of a user. SERP’s primary component is the listing of results
that the search engine returns as a response to a keyword query. The ranking of the results is based on
their relevance to the query. These results are generally of 2 types. One of these is the organic search
result which is retrieved by the algorithm of the search engine and the other is the sponsored search
result (advertisement).
◉ Every result that is on the SERP has a title, a short description and a link that directs to the actual web
page. In the case of sponsored results, it is the advertiser who chooses what gets displayed.
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SERP

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