SEO involves optimizing websites and pages to rank higher in organic search results. There are two main types of SEO: on-page optimization which involves optimizing HTML elements like meta tags and content, and off-page optimization which focuses on link building. White hat SEO adheres to search engine guidelines while black hat SEO uses spammy techniques like keyword stuffing or cloaking forbidden by search engines. Key ranking factors include titles, descriptions, backlinks, and keyword optimization.

2. Search engine optimization (SEO) is the process of changing
the position of a website or a web page in a search engine's
search results (Organic or Natural results).

3. Two Types of SEO are:
• On Page Optimization
• Off Page Optimization

4. Two SEO Techniques are:
• White Hat SEO
• Black Hat SEO ( Negative SEO )

5. On-page optimization is one of the types of SEO that refers to
factor that gives outcome to a website or web page ranking on
SERP ( Search Engine Results Page ). On-Page Optimization
means controlling a webpage by you or by your page coding.
Some of the examples are HTML Code, Meta Tags like Meta
Title, Description, Content Quality, Keyword Density,
Outbound Links, Image Alt tag etc.

6. Off Page Optimization is also one of the types of SEO
that are not controlled by the page coding.
Examples of Off-page optimization Link building,
Blog posting, Image Sharing, Document Sharing,
Video Sharing, Info graphics submission, Increasing
Page Rank and Page Authority, Article submission,
Getting high quality links from relevant sites etc.

7. Page Rank is a rank that has been provided by Google for each
and every Webpage. This Rank ranges from 0 to 10. This Page
Rank is calculated by an Algorithm used by Google Web Search
Engine. PR of a web page is based on the number of backlinks
that received from other high PR webpage.

8. Back link means incoming links to a website or webpage. Inbound
links are always better than outbound links. Those links are also
known as incoming links, in links, inward links etc. Getting
backlinks from high PR and relevant site is always good. In links
from .org, .edu sites would increase your website or webpage
ranking on SERP. Do-follow links are better than No-follow links.

9. An outbound-link
(OBL) or outgoing link
is a link from your
website or webpage to
another website or
webpage.

10. Keyword is a word that is used for searching
through Search Engines in order to get results
related to your searched query.

11. Keyword density is the percentage density of a keyword or phrase
available on a webpage compared to the total number of words on
the page. It is one of the important ranking factors for search
engines to display a webpage on the SERP. Providing junk
keywords on a page would decrease the ranking of a webpage.

12. Anchor text is a clickable hyperlink that is also known as
link text, link label and link title. The keyword contained
in the anchor text would increase the ranking of a
webpage that receives the incoming link.

13. The page views come directly through SERP and not
through any Off Page Optimization is known as organic
results.

14. Googlebot is the search bot software used by Google
to index a webpage. Crawling, Caching and indexing
of a webpage happen through this Googlebot by
collecting details from that webpage.

15. There are several Meta tags used in HTML but the top
four tags that are used for SEO are Meta Title, Meta
Description, Meta Keywords and Robot tags.

16. Title is the most important factors for a good SEO of a webpage. These tags
should be located within head section. These tags should tell some useful
information about that page. A good title tag should contain 60 characters.
These titles would appear on the SERP for your website along with the Meta
description of that page. Google won't penalize your page if it contains title
with more than 60 characters and it skips the remaining characters. If a web
page doesn't contain title tag means Google would select the H1 tag as title or
it will provide the title by its own.
Always write title tag for the page and not for SEO, if you stuff keywords in you
title then Google won't rank your webpage.

17. A description tag should describe a webpage and it should contain keywords
but don't stuff all the keywords. Meaningless description would affect your
webpage. A description tag should contain 150 – 160 characters. If you provide
meaningless or empty description, Google would take the description from the
content available in that page.

18. In early days Meta keywords are the least important tag for
Search engine like Google. But it is an easy way to tell our
important keywords to search engine. Meta keywords should
contain less than 250 characters.
Now Google won't consider Meta keywords as one of the
ranking factor.

19. White Hat SEO is one of the SEO techniques that a Search
engine always likes. Usage of SEO techniques, tricks and tactics
by following search engine rules and regulations, algorithm and
policies are known as White Hat SEO.

20. Black Hat SEO or Negative SEO is a common term for doing
SEO Spamming Techniques. Usage of SEO by not following
policies and regulations of search engine is called as black hat
seo. Some of the black hat seo techniques are
•Providing Low Quality content or duplicate content on the page
•Getting backlinks from spammed or adult sites.
•Giving keyword stuffed content on the page with background color
•Getting too much backlinks from a single page with different anchor text that targets
a single page of your website.
•Cloaking
•Google Bowling etc