Page is a not externally linkable
-- Google SEO News and Discussion
---- page is noindexed, but still shows in SERP with a Google notice
goodroi - 8:12 pm on Jun 27, 2013 (gmt 0)Thread source:: http://www.webmasterworld.com/google/4588243.htm
If you disallow it in robots.txt, Google can't crawl the page to see the noindex meta tag.
Brought to you by WebmasterWorld: http://www.webmasterworld.com