Version: Office 365 SharePoint Online

Plan: Education

We recently started up a new site collection which we have dedicated to one site which acts as a central site for our company. I realise that aliasing a URL for a public site is possible, and not for a private site. Still I would love to know if anyone has figured out a work-around (such as a crafty way of using a CNAME, or Apache2 redirect rule, or even somehow using term sets).

The end goal is that I would like to find some way of users going to sub1.domain.com and being redirected to company.sharepoint.com/sites/abc123 while the URL remains unchanged.

  • Is your DNS managed in O365 or in your domain name registrar? Feb 19, 2016 at 5:32
  • @AzizKabyshev It's managed by external name servers, not O365.
    – OnSys
    Feb 22, 2016 at 6:33

1 Answer 1


Due to *.sharepoint.com SSL certificate that's used for all non-public SharePoint Online sites it's not possible to map your custom hostname like sp.company.com. Office 365 currently doesn't allow using custom SSL certs for web resources, nor creating non-HTTPS sites.

Any DNS-level manipulations will lead to 'Invalid certificate' errors, and practically make SP unusable.

I ended up setting simple Moved Permanently redirect for a subdomain in web hosting where our www is located. But that's just a handy trick for users' convenience.

  • Thank you, Aziz, that makes sense. I've tried to set up an Apache redirect and messed around with DNS but nothing works and now I see why. But I was thinking about setting up an alias in Rackspace just this morning, as per your suggestion. Theoretically, it should work. Wish me luck! :)
    – OnSys
    Feb 24, 2016 at 2:38
  • 1
    Update: Rackspace only aliases to other rackspace cloud sites. But I am currently looking into domain forwarding through GoDaddy - I will post another update soon.
    – OnSys
    Feb 24, 2016 at 6:43
  • @OnSys Hi there. Did you manage to set it up? Feb 25, 2016 at 7:55
  • Not yet, sorry. I'll have more time to look into this next week so will post the good/bad news then.
    – OnSys
    Feb 26, 2016 at 2:26
  • @OnSys This task would have to be handled by the web server located at sub1.domain.com. (Since it is an HTTP redirect, it cannot be handled by DNS.) If you have control of the web server at domain.com, you should be able to set up a permanent redirect there. If not, what prevents it?
    – jpaugh
    Oct 17, 2017 at 18:25

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