Increase custom domains limit from 500

Matt Ferguson 1 Reputation point


We are getting a "Too many(501) custom domains. Limit is 500" message on our Azure function. Is there a way to increase that limit?

Azure Functions
Azure Functions
An Azure service that provides an event-driven serverless compute platform.
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Azure App Service
Azure App Service
Azure App Service is a service used to create and deploy scalable, mission-critical web apps.
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  1. Andreas Baumgarten 103.5K Reputation points MVP

    Hi @Matt Ferguson ,

    you could try to contact Azure support to increase the limit:

    • Navigate to your subscription in the Azure Portal
    • Click on Usage + Quota
    • Click on Request increase
    • Select Other Request in the Quota Type field
    • Fill all other fields of the request

    Maybe this will work for your requirement


    (If the reply was helpful please don't forget to upvote and/or accept as answer, thank you)

    Andreas Baumgarten

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  2. MayankBargali-MSFT 69,991 Reputation points

    Hi @Matt Ferguson

    Welcome to Microsoft Q&A! Thanks for posting the question.

    Unfortunately, the max number of custom hostnames allowed for a single app on App Service is 500 and it cannot be increased.

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