# DOI returning 404

**URL:** <https://community.crossref.org/t/doi-returning-404/14717>\
**Category:** Technical Support\
**Tags:** rest-api, content-registration, co-access, multiple-resolution\
**Created:** [4 November 2025 10:40 UTC](https://community.crossref.org/t/doi-returning-404/14717 "2025-11-04T10:40:43Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Enzo\_Bavetta](https://avatars.discourse-cdn.com/v4/letter/e/71e660/32.png) [@Enzo\_Bavetta](https://community.crossref.org/u/Enzo_Bavetta)\
**Post date:** [4 November 2025 10:40 UTC](https://community.crossref.org/t/doi-returning-404/14717/1 "2025-11-04T10:40:43Z")

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The DOI for the following title is returning a 404:

[Varieties of Impact Investing – Creating and Translating a Label in Local Contexts | Bristol University Press](https://bristoluniversitypressdigital.com/edcollbook-oa/book/9781529238181/9781529238181.xml)

I have tried re-submitting the DOI this morning. The job did not return any errors:

[Submission Administration: Detail](https://doi.crossref.org/servlet/submissionAdmin?sf=detail&submissionID=1719698785)

Please can you advise on why this title is returning a 404 error?

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**Author:** ![ifarley](https://sea2.discourse-cdn.com/flex020/user_avatar/community.crossref.org/ifarley/32/44_2.png) [@ifarley](https://community.crossref.org/u/ifarley)\
**Post date:** [4 November 2025 20:36 UTC](https://community.crossref.org/t/doi-returning-404/14717/4 "2025-11-04T20:36:37Z")

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Hi @Enzo_Bavetta ,

Thanks for your message. DOI [https://doi.org/10.51952/9781529238181](https://doi.org/10.51952/9781529238181) is in co-access in our system. Co-access and multiple resolution are served by our REST API. Because there is a lag between when a DOI is registered or updated and when we fully index that registration, there can be these weird interim periods between the registration and indexing when the DOI resolves to a page with an error. That lag can be up to 24 hours.

Your DOI is now resolving to the co-access interim, chooser page:

 ![Screenshot 2025-11-04 at 2.32.02 PM](https://us1.discourse-cdn.com/flex020/uploads/crossref/original/2X/f/ff083e15d55360f47063e98a7af858b2488a941c.png)

Our program and technical teams are aware of this 24-hour period of time where end users would be greeted with 404 errors. They are investigating improvements to this process.

-Isaac

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**Author:** ![Enzo\_Bavetta](https://avatars.discourse-cdn.com/v4/letter/e/71e660/32.png) [@Enzo\_Bavetta](https://community.crossref.org/u/Enzo_Bavetta)\
**Post date:** [5 November 2025 13:06 UTC](https://community.crossref.org/t/doi-returning-404/14717/6 "2025-11-05T13:06:02Z")

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Thanks Isaac,

From what I can see in the Crossref admin portal, this DOI was submitted on the 21st of September, so there was over a week of lag. Either way it is working now.

 ![](https://us1.discourse-cdn.com/flex020/uploads/crossref/original/2X/9/9ebd9aed57d04a58745b7363a1b30069c5f7ff75.png)

Thanks or your help,

Enzo

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**Author:** ![ifarley](https://sea2.discourse-cdn.com/flex020/user_avatar/community.crossref.org/ifarley/32/44_2.png) [@ifarley](https://community.crossref.org/u/ifarley)\
**Post date:** [6 November 2025 03:30 UTC](https://community.crossref.org/t/doi-returning-404/14717/7 "2025-11-06T03:30:43Z")

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Hi @Enzo_Bavetta ,

In the future, if you notice that the DOI is resolving to an error like that and it has been 24 hours do let us know so our technical team can investigate. Glad this one is sorted for you!

-Isaac