More information on the new “unsupported file format” error for Sitemaps

March 20, 2006

As we told you a couple of days ago, we’ve recently
enhanced the infrastructure that
processes Sitemaps. We’ve begun processing Sitemaps against stricter guidelines because we are
committed to interoperability with other tools that are using this
protocol.
Because of this, some of you now see an “unsupported file format” error for Sitemaps that
previously had an “OK” status.

You’ll see this error if the parser doesn’t recognize a valid Sitemap file. Here are a few things
to check if you see this error:

• Confirm that the file uses the correct header.
  • For a Sitemap file, the header can look like this:
  • For a Sitemap index file, the header can look like this:
• Ensure the namespace in the header is
  https://www.google.com/schemas/sitemap/0.84. Note that this must end in 0.84. If
  it ends in .84, you’ll see an error.
• Make sure each XML attribute is enclosed in either single quotes (') or double
  quotes (") and that those quotes are straight, not curly. If you use a word
  processing program, such as Microsoft Word, you may find that it inserts curly quotes.

Posted by Vanessa Fox