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Bing enhances support for large Sitemaps

We have another quick but important announcement today.

Bing, along with the other search engines that are a part of, has announced support for the following Sitemap enhancements:

1. You can now include up to 50,000 references (either URLs or links to child Sitemaps) in your sitemap.xml index file. Until recently, Sitemap files only supported about 1,000 child references. This enhancement will be very useful to extremely large sites, as now a single, large Sitemap index file, referencing up to 50,000 child Sitemap files, each of which referencing up to 50,000 URLs, can reference up to a total of 2.5 billion URLs.

2. A slight modification of the Sitemaps XSD schemas helps developers and applications to validate Sitemaps content against defined types. For example, the attribute lastmod is now xsd:date instead of xsd:string. We aim to improve Sitemaps quality with this modification. Note that the Sitemap schema version is still identified as version 0.9.

Let’s take a look at some sample code from a Sitemap.xml file to see how the schema change affects your work. The lastmod attribute in the new Sitemaps protocol requires a date value rather than a string. The following example is valid code because the lastmod data matches the type defined by xsd:date:

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="">

The following is an example of a lastmod field entry that never properly worked, but was technically valid because it matched the previous protocol as a xsd:string:

<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns="">
      <lastmod>last fall at noon</lastmod>

Please see Sitemaps XML format for more information on the current Sitemap protocol. Once you have your Sitemap ready to submit, you can either log on to Bing's Webmaster Center tools and use the Sitemap tool or send it to us with your browser at<YOUR URL>/sitemap.xml. You'll need to add in your site's URL at the end of the submission string before you submit it. Note that Bing only accepts XML files for Sitemaps.

If you have any questions, comments, or suggestions, please feel free to post them in our Sitemap protocol forum. Thank you!

-- Rick DeJarnette, Bing Webmaster Center


  • Rick,

    Could you indicate a link with a practical example for download, if possible, about the use of "xsd:date instead of "xsd:string?

    Facilitate our life! We believe in Bing as business! :)

    Thank you!

  • This is almost like google sitemap and bing also supports same way. You can include 50K URL's now but one thing is still not sure if i t will index image URL's or not. Only time will tell.

  • Like it is written above that "You can now include up to 50,000 references (either URLs or links to child Sitemaps" what about images url?

  • I have a large site but not large enough to need this new enhancement.

  • A good enhancement.

  • bling doesnt have the satellite view of the maps. this makes me harder to locate my pins on it and there are no street veiw of it and no displays of districts or states in Tiruchirappalli, Tamil Nadu,India. you need to provide more user friendly in editing the maps of google. the local residents will be the most benefitted from it. Please give more privillages like maps. hope your new venture is very creative and challenging to the big G - the 'GooGle'

  • Good stuff. Thanks and greetings!

  • Please keep posting more blogs for webmaster and publishers. One blog per day is not enough.

  • So where can I submit the sitemap?

  • nice work when is it ready?

  • Keep it coming webmaster team! :)

  • well what about mobile sitemaps... i mean for mobile website and how to submit them..

  • does your sitemap index have to be stored in sitemap.xml or can it be any other file?

  • Great feedback! I updated the post to include an example of how the lastmod attribute was changed. I also added information on how to submit your sitemap.xml file to Bing.

    Rick DeJarnette

  • I thing bing need to change webmaster central like google that will better for webmaster but now bing have good tool at the moment. :)