Azure Web Sites custom domain number limitation

Hi,

We were wondering if there was a hard limit on the number of custom domain names accommodated by Azure Websites?

According to this recent Stackoverflow post, it would appear that you cannot add more than 250 custom domains to a website:

http://stackoverflow.com/questions/23870262/maximum-number-of-domains-supported-in-azure-websites

'Question: We're building a hosted service where each of our users gets a custom sub domain on our service's domain when they sign up (for example john.myservice.com).

We handled this by adding a wildcard entry in our Azure Website's domain manager (*.myservice.com) and Azure Websites would now correctly handle all sub domains of the domain we added.

However, we also allow our users to map their own custom domains to their sub domain (for example: johnsmith.com points to john.myservice.com).

Right now we've achieved this by adding an A Record to johnsmith.com's DNS pointing to the Azure Websites IP Address, and have added johnsmith.com as an additional domain in Azure Websites' domain manager.

So far, this is working as expected. My question is how many such domains does Azure Websites support? Say we have a million users who each want to map their custom domains to their hosted sub domain.

Does Azure have a hard limit on the number of fully qualified domains that can be mapped to a website?

On a related note, what would be the best way to go about this on a Azure Website. I'm sure there are other approaches apart from the one we are using right now.

Answer: Azure Websites has a hard limit of 250 custom domains per site'

Is this still the case?

We have a similar requirement to add more than 250 custom domains.

Thanks,

H



  • Edited by gifteds Monday, July 07, 2014 6:38 PM
July 7th, 2014 9:44am

Can anyone at Microsoft or otherwise confirm whether or not there is a limit of 250 custom domains for Azure Websites?

Thanks,

H

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July 7th, 2014 9:08pm

hi,

Yes, there is a limit of 250 custom domains for azure websites. But currently, there is no documents for this.

Regards,

Will

July 8th, 2014 6:02am

If you think that 250 custom domains is too low to support anything other than a hobby multi-tenant app (which it is!) then please cast your vote at the link below!:

http://feedback.azure.com/forums/169385-websites/suggestions/6986208-remove-the-limit-of-the-custom-domain-names-in-azu

  • Marked as answer by gifteds Thursday, January 29, 2015 6:47 PM
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January 29th, 2015 9:47pm

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