# Okta Custom Domain - mydomain.shop is an "invalid format", but mydomain.com is valid

**URL:** <https://devforum.okta.com/t/okta-custom-domain-mydomain-shop-is-an-invalid-format-but-mydomain-com-is-valid/12325>\
**Category:** Questions\
**Created:** [January 3, 2021, 11:22pm UTC](https://devforum.okta.com/t/okta-custom-domain-mydomain-shop-is-an-invalid-format-but-mydomain-com-is-valid/12325 "2021-01-03T23:22:11Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![dylangles](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/dylangles/32/2491_2.png) [@dylangles](https://devforum.okta.com/u/dylangles)\
**Post date:** [January 3, 2021, 11:22pm UTC](https://devforum.okta.com/t/okta-custom-domain-mydomain-shop-is-an-invalid-format-but-mydomain-com-is-valid/12325/1 "2021-01-03T23:22:11Z")

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Hi!

I’m trying to set up a custom domain as a work-around for the [third-party cookies issue](https://support.okta.com/help/s/article/FAQ-How-Blocking-Third-Party-Cookies-Can-Potentially-Impact-Your-Okta-Environment?language=en_US&_ga=2.177709357.926493441.1609638710-1931687210.1607616768), but the Custom URL Domain interface in the developer console for my org isn’t allowing the .shop extension.

Is there anything that can be done?

For example:  
[mydomain.com](http://mydomain.com) \<- valid  
mydomain.biz \<- valid  
[mydomain.io](http://mydomain.io) \<- valid  
mydomain.shop **\<- invalid!**

Thanks!

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**Author:** ![andrea](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/andrea/32/2172_2.png) [@andrea](https://devforum.okta.com/u/andrea)\
**Post date:** [January 4, 2021, 10:05pm UTC](https://devforum.okta.com/t/okta-custom-domain-mydomain-shop-is-an-invalid-format-but-mydomain-com-is-valid/12325/2 "2021-01-04T22:05:20Z")

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I reached out internally about this limitation and we are looking to update the domain validation to allow the .shop TLD.

If this is time sensitive and/or you want more details about when this will be available, you can open a support case and cite the internal ticket that was created to track this request: OKTA-357831

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**Author:** ![dylangles](https://sea1.discourse-cdn.com/oktadev/user_avatar/devforum.okta.com/dylangles/32/2491_2.png) [@dylangles](https://devforum.okta.com/u/dylangles)\
**Post date:** [January 4, 2021, 10:07pm UTC](https://devforum.okta.com/t/okta-custom-domain-mydomain-shop-is-an-invalid-format-but-mydomain-com-is-valid/12325/3 "2021-01-04T22:07:39Z")

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Thanks very much! Not time sensitive.

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**Author:** ![system](https://global.discourse-cdn.com/oktadev/original/1X/589c4c5f80de422d01f47cee7185a7fb8227835c.png) [@system](https://devforum.okta.com/u/system)\
**Post date:** [January 5, 2021, 10:07pm UTC](https://devforum.okta.com/t/okta-custom-domain-mydomain-shop-is-an-invalid-format-but-mydomain-com-is-valid/12325/4 "2021-01-05T22:07:41Z")

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Closed on January 5, 2021, 10:07pm UTC

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