Search Engine Indexing of Secure Pages
If your website includes secure pages such as login pages or pages generated by shopping cart software, you may experience problems with canonicalization of URLS if your secure pages (pages beginning with https instead of http) which are part of the same subdomain as the non-secure pages on your site.
Since this can have a serious effect on your site’s overall search engine ranking, you’d probably like to know how to keep the search engines from indexing these secure pages- and if so, you’ve come to the right place.
Supposing that all of your site’s secure pages are located on their own secure subdomain, then this will be a relatively easy to fix; all you need to do is to edit the robots.txt file in the subdomain’s root folder to exclude these pages.
However, it’s not always the case that these secure pages are on their own subdomain. It’s common to use SSL encryption for contact pages or other forms which may be the only secure page within a site.
Instead of creating a new subdomain for this single page, you’d probably rather keep this page in your site’s structure much as it is now.