silverstripe-labs/silverstripe-googlesitemaps — pull request #74 by gherkins (2014-10-20 14:43:14+00:00)
Title: add X-Robots-Tag header

adding the X-Robots-Tag header might be a good thing,
as it prevents the sitemap itself from getting indexed by google and showing up in the SERPs

see https://developers.google.com/webmasters/control-crawl-index/docs/robots_meta_tag