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How Search
Engines Work: First, search engines crawl
the Web to see what is there. This task is performed by a piece of
software, called a crawler
or a spider (or
Googlebot, as is the case with Google). Spiders follow links from one
page to another and index everything they find on their way. Having
in mind the number of pages on the Web (over 20 billion), it is
impossible for a spider to visit a site daily just to see if a new
page has appeared or if an existing page has been modified, sometimes
crawlers may not end up visiting your site for a month or two.
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Techniques Used
In SEO: SEO is a
Search Engine Optimization. And in SEO we used two types of
techniques in it i.e.
WHITE HAT SEO
BLACK HAT SEO
WHITE
HAT SEO: White hat SEO encompasses the ethical side of
search engine optimisation. SEO does have a time and place, and when
used correctly, it has the ability to dramatically improve a
website’s visibility and search engine rankings to increase sales.
When
using white hat SEO, keyword research comes into play. A
website owner should research keywords that customers are searching
for to reach their website. They can then include these keywords
naturally within the pages, meta-tags, and descriptions of their
website to improve their visibility in the search engines.
They
can also publish high-quality content online linking their keywords
back to their website to naturally increase their back links and
improve their search engine rankings.
Additionally,
white hat SEO tactics involve building the authority and presence of
a website to naturally increase back links to the website to improve
search engine rankings. Instead of swapping or purchasing links
unethically, a website using white hat SEO would publish high-quality
content, guest blog, reach out to customers through social media, and
circulate information to gain trustworthy links back to their
website.
BLACK
HAT SEO: Black hat SEO is a category of unethical
and manipulative search engine optimisation. In fact, it is black hat
SEO that has given SEO a bad name in Internet marketing. Black hat
SEO involves tactics like keyword stuffing, which is including an
excess amount of keywords within a single page of web content for the
purpose of attracting the search engines. Unfortunately, this tactic
is ineffective because the content becomes illegible to the website
visitor, and in many cases, keyword stuffing will also cause a
website to be penalised by Google.
Another
black hat SEO tactic is spamming through the meta-tags on a website.
Search engines are constantly on the lookout for meta-tags stuffed
full of popularly searched keywords that may not relate to the actual
content of the website. Again, this tactic will cause a website to be
penalised by the search engines.
Other
black hat SEO tactics like link farming and buying links are widely
discouraged in search engine optimisation circles. In the
earlier days of search engine optimisation, many website owners
relied upon purchasing links from other websites in the hopes of
improving their search engine rankings.
While
this did work for several years, Google has now caught on to the fact
that specific websites will sell links to other websites. If you were
to purchase a link from another website, it is likely that Google
would find out and either count the link as No Follow or penalise
your website as a result.
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Comparison chart
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Black
Hat SEO
|
White
Hat SEO
|
Meaning:
|
Techniques
used to get higher search rankings in an unethical manner.
|
Conforms
to search engine designs and involves no deception.
|
Status:
|
Disapproved
by search engines.
|
Approved
by search engines.
|
Result:
|
Site
is eventually banned, de-indexed or penalized through lower
rankings.
|
Results
last a long time.
|
Techniques:
|
Black
hat SEO techniques include keyword stuffing, doorway and cloaked
pages, link farming, hidden texts and links, blog comment spam.
|
White
hat SEO techniques include research, analysis, re- write meta
tags to be more relevant, content improvement and web redesign.
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