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Custom Domains - SSL - Add Troubleshooting section #284

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Aug 26, 2022
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Custom Domains - SSL - Add Troubleshooting section #284

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6 changes: 6 additions & 0 deletions app-guides/custom-domains-with-fly.html.md
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Expand Up @@ -399,6 +399,12 @@ The GraphQL mutation returns the app name and the hostname and certificate id th
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## Troubleshooting

**I use Cloudflare, and my fly.io SSL certificate doesn't seem to issue**

If you're using Cloudflare, you might be using their Universal SSL feature which inserts a TXT record for `_acme_challenge.mydomain` that interferes with our cert validation. You should disable this feature, and verify by running `dig txt _acme-challenge.mydomain.com +short` to see if it returns with a fly address.

## Wrapping up

You have everything you need to either hand assign a custom domain to your Fly application or to create your own automated multi-domain proxy. Let your ideas take flight with Fly.
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