Search Engine in SEO |
Search Engines are the
analyzer of website performance over the world. Search engine uses
its own algorithms to make this happen. Search engines also have some
programs named as crawler or spiders that determines the quality of
the website by crawling your site. This is because, the search engine
does not understand the website as human does, so make the use of
crawlers.
These crawlers follow
your website's links by following properties Do-follow and No-follow and index content within its own database. Many websites have the
problems with content indexing due to some On-Page tags. With the
Google's cache and MozBar, you can status of your website for indexed
and visible content.
Crawling:
Crawling is just
scanning your websites for links and content and index them to its database so that when user make a query to search engine, it finds
relevant from its database. For this purpose, the search engine make
the use of its some programs called spiders.
After Crawling, they
index relative and necessary information so that when a search query
is made, the information can be recalled.
The Search Engine's
database can store the large quantities of information and provide
the result as fast as possible.
Problem with Crawling:
The Crawling is based
on the interlinking of pages so that crawler can make quick and
effective crawling. But sometimes the problem occurs when a correct
interlinking of documents or pages is not there within a website. To
avoid this problem, interlinking must be in a such way that crawler
can crawl all the webpages or documents of the website.
What to Avoid in your website:
If your website or any
of the page within your website is being index or crawl then there
might be some problems with your website or web page. You should
avoid them.
- Does not put any online form require to fill it up for accessing the content.
- Don't Use any Java-script for links, just use Standard HTML links.
- Don't link any page that is blocked by robot.txt
- Try to avoid the use of frames or I-Frames
- Search engine does not use the search box of the website, so Avoid it.
- Don't make links in flash,java or other plugins.
- Don't make any page as Doorway page or Hallway page
- Add the attribute “rel= no-follow” to any links that you don't want to crawl
- Make use of both Do-follow or No-follow links.
Importance Preference:
Search Engines are used
to get answers of the queries made by user. When a Engine' spider
crawl the website, it index so many website for a particular topic in
its database. Now as the query result, it display all the query
matching pages or information from its database.
The results displayed
are according to their popularity worldwide given by Search Engine and
its algorithms.
The relevancy is first
important part of preference that is followed by usefulness.. The
more popularity means more valuable your website or webpage is. These
popularity, usefulness and relevancy is determines by the many
ranking factors that have been proposed by search engine. These all the ranking factor are
optimized by search engine algorithms.
Limitations of
Search Engines:
As the search engine is
completely based on its algorithm and programs, so there are some
limitations relating to search engines. As the search engine can not determine the status of
the website or content, it's the information that is provided with
the user by discovering, reacting,commenting and linking. Only the
content that is made popular by human is boosted by search engine by
giving preference to it in its search queries.
Search Engine crawlers
are difficult to read the rich media format contents or links like
images, photos, audio, video, flash and plugins.