Webmasters have been using Html sitemaps to get their content identified by search engines. This type of HTML sitemaps can be interpreted by visitors and search engines.
Webmasters simply build an HTML sitemap, place a link to the file in their homepage and upload that file to their server's.
Now, there are many types of sitemaps: XML sitemap, HTML sitemap, text sitemap and Google sitemaps.
XML sitemap: An XML sitemap is an xml file containing a structured list of web pages. After generating your xml file, you locate it on your web server and you allow Search Engine crawlers to find out what pages are present and which have recently changed.
You don't place a link to the file in your homepage.XML sitemap needed in order to provide information about your website to Google which allows webmaster to submit XML sitemap to let the spider crawl their websites more easily.
HTML Sitemaps: Creating an HTML sitemap linked to and from your home page is something confidence webmasters have been doing for years and perhaps is the simplest to create. This sitemap is simply a list of pages contained on your site and enables the search engines spiders to easily find your pages, especially the ones that are linked unfathomable in your website that they may have trouble finding otherwise.
TEXT Sitemaps: A text sitemap is simply a list of the URLs of your site in the form of a text file. These can then be submitted to search engines such as Yahoo! to notify them that all the pages exist and by doing so invites their spider to visit. Best of all, there are many free online generator, they will spider your website and create your XML sitemap file and text sitemap.
All you have to is to upload them to your server and notify to search engine of their location.
What is a Google Sitemap?
A Google Sitemap is a XML document that lists all the pages in your website, but the Google Sitemaps program is much more important than a simple list of WebPages, because it's the only way offered by Google to webmasters to communicate with them about their websites.
Google Sitemaps program offer to webmasters the opportunity to inform Google how better the spider could crawl their websites with simple process:
Create an XML file which listed all your WebPages,
Uploaded this XML file to your web server,
And log into Google sitemaps after you have created an account to tell them where your XML file is located.
The most complicated to set up using the tools provides by Google is to run Python on your server.
This XML file is not for visitors to read and you don't link to it from any of your WebPages. Google sitemaps are only for Google and other search engine such as MSN, Yahoo and AOL will not understand it.
The foremost benefit of the Google Sitemap is that you are suggesting information to Google about your website, such as which pages are most important and which ones have been updated. If you do it right so that Google will ordinary follow your suggestions.
What is "Change frequency"?
This value indicates how frequently the content at a particular URL is probable to change.
What is "Last Modified"?
The time the URL was last modified. This information allows crawlers to avoid recrawling documents that haven't changed.
You can let the generator set this field from your server's response headers or to specify your own date and time.
This option let you to tell Google how frequently your web pages are updated and the date that each web page was last modified. For example your homepage might be updated monthly, whereas company's address and contact information might only be updated on an annual basis
What is "Priority"?
Google gives you the capacity to tell them on a scale of 0.0 to 1.0 how important a given page is relative to all the others where:
0.0 associates the lowest priority page on your site
1.0 associates the highest priority page on your site.
0.5 associates the default priority of a page.
For example you might tell Google that your home page is a 1.0, services and products WebPages are a 0.8, contact information and link directory might only rate a 0.2.
Every type of sitemaps has an advantage that can help your website to get more traffic or to have a friendly relationship with search engines. For that reason, it's very important to build all this sitemaps.
Building sitemaps for the different search engines will help your website to the maximum exposure because search engines will allow their spiders to crawl earlier, more methodically and more significantly into your website pages.
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