Sitemap for a site with a large number of dynamic subdomains

Question

I\'m running a site which allows users to create subdomains. I\'d like to submit these user subdomains to search engines via sitemaps. However, according to the sitemaps protoco

Answer 1

I recently struggled through this and finally got it working. See this thread for more details:

http://www.google.com/support/forum/p/Webmasters/thread?tid=53c3e4b3ab8d9503&hl=en&fid=53c3e4b3ab8d9503000497bd04ba63cf

Summary:

• Use DNS verification to verify your site and all it's subdomains in one fell swoop
• make the robots.txt on all your subdomains point to the main sitemap on your www domain
• You may need to wait several days for Google to update it's cached copies of robot.txt on all your subdomains. It will still show errors until then.