Search engine optimization (SEO) is the process of affecting the visibility of a website or web page in unpaid search engine results (often called "natural," "organic," or "earned" results) through techniques like keyword optimization, linking, and other methods to increase rankings.

1. Search engine optimization (SEO) is the
process of affecting the visibility of
a website or a web page in a web search
engine's unpaid results — often referred to
as "natural," "organic," or "earned" results.
https://en.wikipedia.org/wiki/Search_engine_optimization
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2. How
Search
Engine
Works
CRAWL
CACHE
RETRIEVERANK
SERP
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3. Crawling is the process by
which Googlebot discovers new and updated pages
to be added to the Google index or Cache. Google
uses a huge set of computers to fetch (or "crawl")
billions of pages on the web. The program that does
the fetching is called Googlebot (also known as a
robot, bot, or spider).
CRAWL
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4. How Google finds Web Pages
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6. CACHE
• Don't look VISUALLY
• Check the Source code
• Check for Authenticity
• Take a virtual copy of website
• Store in Google Data Centers
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7. Google Data Centers
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8. RETRIEVE
• Retrieve Data from the nearest Data Center
• Does it very fast
• Retrieve maximum number of relevant
information
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9. RANK
PageRank is a link analysis algorithm used by
Google to help determine the relative
importance of a website. Every website is given
a Google PageRank score between 0 and 10 on
an exponential scale.
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10. Google now uses at least 200 ranking
factors in their algorithm, including social
signals, user-interaction signals, and
trust.
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13. SERP
• Identity
• Location
• Login/log off
• Device
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