Search engine submission
If Sitemaps are submitted directly to a search engine (pinged), it will return status information and any processing errors. The details involved with submission will vary with the different search engines. The location of the Sitemap can also be included in the robots.txt file by adding the following line to robots.txt:
Sitemap: <sitemap_location>
Search Engine Optimization
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The <sitemap_location> should be the complete URL to the Sitemap, such as: http://www.example.org/sitemap.xml. This directive is independent of the user-agent line, so it doesn't matter where it is placed in the file. If the website has several Sitemaps, this url can simply point to the main Sitemap index file.
The following table lists the Sitemap submission URLs for several major search engines:
Search engine Submission
URL =Google
http://www.google.com/webmasters/tools/ping?sitemap=
Help page = Submitting a Sitemap
Yahoo!
URL =http://search.yahooapis.com/SiteExplorerService/V1/updateNotification?appid=SitemapWriter&url=
http://search.yahooapis.com/SiteExplorerService/V1/ping?sitemap=
Help page = Does Yahoo! support Sitemaps?
Ask.com
URL =http://submissions.ask.com/ping?sitemap=
Help page = Q: Does Ask.com support sitemaps?
Bing (Live Search)
URL=http://www.bing.com/webmaster/ping.aspx?siteMap=
Help page =Bing Webmaster Tools
Sitemap URLs submitted using the Sitemap submission URLs need to be URL-encoded, replacing : with %3A, / with %2F etc.
