Can I stop Google and other search engines indexing my subdomain, when subdomain is 3rd party owned? [duplicate]

Can I stop Google and other search engines indexing my subdomain, when subdomain is 3rd party owned? [duplicate] - Google Search Console is a free application that allows you to identify, troubleshoot, and resolve any issues that Google may encounter as it crawls and attempts to index your website in search results. If you’re not the most technical person in the world, some of the errors you’re likely to encounter there may leave you scratching your head. We wanted to make it a bit easier, so we put together this handy set of tips about google-search, subdomain, cname, to guide you along the way. Read the discuss below, we share some tips to fix the issue about Can I stop Google and other search engines indexing my subdomain, when subdomain is 3rd party owned? [duplicate].Problem :

This question already has answers here:

Hide a Subdomain from Google/Search Engine SEO Result?

(4 answers)

Closed 5 years ago.

I've just looked up my website in Google, to see if the sitemap had changed to reflect some new content and pages, and I have a bit of a problem. I use a third-party hosted toolset, which is linked via a CNAME record on my host server.

So lets say...

My Site = www.mysite.co.uk
Toolkit = www.clients.mysite.co.uk
The CNAME on my host says: clients.mysite.co.uk > thirdparty.toolset.com 

But when I look at the Google sitemap, I see several of the clients.mysite.co.uk pages listed as well - many of which I don't actually use, and so don't want the public to see.

I can't make any changes to the third party site, so can't put a robots.txt file in the root of clients.mysite.co.uk (as it's actually thirdparty.toolset.com), or make any changes to the .htaccess there either. Of course I can make changes to anything in the normal www.mysite.co.uk domain...

Any idea what I should do to stop the indexing happening in the subdomain, and also preferably to quickly remove what has already appeared in Google?

Solution :

Without any access to the sites, you aren't going to be able to permanently block crawling or indexing. Even Google's help help articles on this only really provides options that would require some form of access, if not to the code then to the server in some way. For example, see: https://support.google.com/webmasters/answer/6062602?hl=en&authuser=4&ref_topic=4598466

However, one option that might exist is to temporarily remove the URLs provided you can verify the site and gain access to Google Search Console. The REmove URLs tool gives you the opportunity to remove URLs for ~90 days. More about that here: https://support.google.com/webmasters/answer/1663419/?hl=en&authuser=4

The one problem with that route might be verifying ownership. However, you should be able to verify via DNS: https://support.google.com/webmasters/answer/35179/?hl=en&authuser=4

If the issue about google-search, subdomain, cname, is resolved, there’s a good chance that your content will get indexed and you’ll start to show up in Google search results. This means a greater chance to drive organic search traffic to your site.