# "Metadata Quality Check" often returning 503 errors

**URL:** <https://community.crossref.org/t/metadata-quality-check-often-returning-503-errors/14307>\
**Category:** Technical Support\
**Tags:** content-registration, xml\_support, parser\
**Created:** [14 August 2025 17:17 UTC](https://community.crossref.org/t/metadata-quality-check-often-returning-503-errors/14307 "2025-08-14T17:17:55Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![rob](https://avatars.discourse-cdn.com/v4/letter/r/838e76/32.png) [@rob](https://community.crossref.org/u/rob)\
**Post date:** [14 August 2025 17:17 UTC](https://community.crossref.org/t/metadata-quality-check-often-returning-503-errors/14307/1 "2025-08-14T17:17:55Z")

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Over the last week or so I have been getting this maybe 7 out of 10 times I try to use [https://data.crossref.org/reports/parser.html:](https://data.crossref.org/reports/parser.html:)

# 503 Service Unavailable

No server is available to handle this request.

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**Author:** ![Shayn](https://sea2.discourse-cdn.com/flex020/user_avatar/community.crossref.org/shayn/32/57_2.png) [@Shayn](https://community.crossref.org/u/Shayn)\
**Post date:** [14 August 2025 17:25 UTC](https://community.crossref.org/t/metadata-quality-check-often-returning-503-errors/14307/2 "2025-08-14T17:25:54Z")

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Please access the parser from [https://www.crossref.org/02publishers/parser.html](https://www.crossref.org/02publishers/parser.html)

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**Author:** ![rob](https://avatars.discourse-cdn.com/v4/letter/r/838e76/32.png) [@rob](https://community.crossref.org/u/rob)\
**Post date:** [14 August 2025 17:28 UTC](https://community.crossref.org/t/metadata-quality-check-often-returning-503-errors/14307/3 "2025-08-14T17:28:08Z")

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Thanks. That’s working. Looks like you have an old link or two in the documentation.

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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:** [14 August 2025 17:47 UTC](https://community.crossref.org/t/metadata-quality-check-often-returning-503-errors/14307/4 "2025-08-14T17:47:29Z")

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> [@rob](#):
>
> [crossref.org : metadata quality check](https://data.crossref.org/reports/parser.html)

Thanks for flagging that to us @rob . I have updated the link to the parser in the testing your XML portion of the documentation here: [https://www.crossref.org/documentation/register-maintain-records/direct-deposit-xml/testing-your-xml/](https://www.crossref.org/documentation/register-maintain-records/direct-deposit-xml/testing-your-xml/). We had two different links on that page, which I have fixed. That correction will go live the next time we push changes to the website. That usually takes a couple of days.

Warm regards,

Isaac