The first basic truths, that’s you need to understand in SEO that
search engines are not a human. While this might be obvious for everybody, the
differences between how humans and search engines view web pages aren't. Search
engines are text-driven, voice driven and image driven. Although now a day’s technology
advances rapidly grow, search engines are far from intelligent creatures that
can feel the beauty of a cool design or enjoy the sounds and movement in
movies. Instead, search engines crawl the web pages, looking at particular site
content (mainly text) to get an idea about a site.
Firstly, search engines crawl the website to see what is on the website. This task is performed by software, called a crawler or a spider.
Spiders go to website and follow links from one page to another
and index all things, whatever they find on their way. More than 20 billion
pages on the web available, so it is impossible for a spider to visit all site
daily just to see if a new pages is added or any existing page is modified on
the web. So it may be possible that crawlers may not end up visiting your site
for a month or two.
Crawling-
Crawling is a process by
which search engines discover publicly available web pages. Google uses
software name “web crawlers” for crawling. The crawl process begins with a list
of web address from past crawls and sitemaps provided by website owners.
What you can do is to check what a crawler sees from your site. As
above mentioned, crawlers are not humans and they do not see images, Flash
movies, JavaScript, frames, password-protected pages and directories, so if you
have added these on your site, you'd better run the Spider Simulator below
to see if these goodies are viewable by the spider. If they are not viewable,
they will not be spidered, not indexed, not processed, etc. - in a word they
will be non-existent for search engines.
Spider-
Spider
is a program (set
of instructions) that
automatically fetches Web pages. Spiders are used to feed pages
to search engines. It's crawls over the Web, so it’s called spider. Another
term for these programs is known as WebCrawler.
Example:
Name
of Google Spider is “Googlebot”.
Name
of Bing Spider is “Bingbot”.
Name
of Alta Vista Spider is “Scooter”.
When page is crawled by crawler the next step is to index its all the content. The index
page stored in a giant database, from where it can be access or retrieved later
as per requirement. Essentially, the process of indexing is identifying the
words that best describe the page and provides the page to particular keywords
which search on the web. So typical work is very difficult for a human to
process such amounts of information but generally search engines manage just
fine with this task within a few time. Sometimes search engine not get the meaning
of a page right but if we help them by optimizing it, it will be easier for to
search engine to classify your pages correctly and for you – to get higher
rankings and better results.
When anybody searches anything in search engine, the search
engine processes it – i.e. it compares the search keywords or
string in the search request with the indexed pages in the stored database.
Since it is likely that more than one page (practically it is millions of
pages) contains the search string or keyword, the search engine starts
calculating the relevancy of each of the pages in its index as the
keywords or string searched and provides best result after calculating the
relevancy.
You have to be very careful while choosing a Internet Marketing training Institute. Take the matter of ‘course details’ seriously that you can get from
institutes’ websites, compare their offers with other websites and decide
whether it meets the market standard or not to get best SEO training institutes in Delhi.
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