# SniCertificate::CertificateNonvalidError on website

**URL:** <https://answers.netlify.com/t/snicertificate-certificatenonvaliderror-on-website/154406>\
**Category:** Support\
**Tags:** netlify-dns-https-ssl\
**Created:** [July 12, 2025, 6:19pm UTC](https://answers.netlify.com/t/snicertificate-certificatenonvaliderror-on-website/154406 "2025-07-12T18:19:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Fe\_De](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/fe_de/32/67688_2.png) [@Fe\_De](https://answers.netlify.com/u/Fe_De)\
**Post date:** [July 12, 2025, 6:19pm UTC](https://answers.netlify.com/t/snicertificate-certificatenonvaliderror-on-website/154406/1 "2025-07-12T18:19:13Z")

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netlify site name: [https://stunning-dasik-1d2b1c.netlify.app/](https://stunning-dasik-1d2b1c.netlify.app/)

custom domain: [companion-connect.org](http://companion-connect.org)

**SniCertificate::CertificateNonvalidError: Unable to verify challenge for [companion-connect.org](http://companion-connect.org): 15.197.225.128: Invalid response from [http://companion-connect.org/.well-known/acme-challenge/NPzI7R5Y-zoaMDt9l3pgfnm9bqko0cpYbdMmIFiN69E:](http://companion-connect.org/.well-known/acme-challenge/NPzI7R5Y-zoaMDt9l3pgfnm9bqko0cpYbdMmIFiN69E:) 403**

We can’t renew your Let’s Encrypt certificate automatically until the issue is resolved. Check our [troubleshooting guide](https://docs.netlify.com/domains-https/troubleshooting-tips/?_gl=1*7uy7wd*_gcl_au*NzY0MjM0NTM4LjE3NTIzMDE3NDguNjE4MzAyMDIxLjE3NTIzNDMwODIuMTc1MjM0Mzc4OA..#certificates-and-https) for more information on how to fix the problem, and then renew the certificate.

I recently swapped to Netlify DNS. Help please!

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<div class="post-metadata">

**Author:** ![sid.m](https://sea1.discourse-cdn.com/netlify/user_avatar/answers.netlify.com/sid.m/32/50638_2.png) [@sid.m](https://answers.netlify.com/u/sid.m)\
**Post date:** [July 14, 2025, 3:22pm UTC](https://answers.netlify.com/t/snicertificate-certificatenonvaliderror-on-website/154406/2 "2025-07-14T15:22:10Z")

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> [@Fe\_De](#):
>
> stunning-dasik-1d2b1c.netlify.app/

It looks like we’ve successfully provisioned SSL since you wrote in. Please let us know if you need any further support.