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Cloudflare Developers•3y ago
Pimeko

SSL Error due to missing root CA for AWS domain with root CNAME to Pages

Hi all!

I have a domain registered on AWS route 53, let's call it
example.com
example.com
. The content of the website is hosted on cloudflare pages at the address ˋexample.pages.devˋ.
To point the domain to ˋpages.devˋ without redirection, I have put a NS record on Route 53 pointing to cloudflare DNS.
On cloudflare DNS' side, i have put a CNAME and ˋexample.comˋ is now an alias of ˋexample.pages.devˋ.

Now, ˋexample.comˋ shows the content of ˋexample.pages.devˋ without redirection so that's good!

There is only one issue: it doesn't display on some browser (like my TV or random macbooks in public stores) saying "This server could not prove that it is example.com; its security certificate is not trusted by your computer's operating system. This may be caused by a misconfiguration or an attacker intercepting your connection."

I have run an online DNS check and it says "Your certificate could not be chained to a valid, trusted CA root, likely due to missing or invalid Intermediate certificate(s). This may result in errors displayed for your site by some browsers. " or "Root 1 missing"

Do you have an idea of what I should do? Any help appreciated 🙏
Thank you!
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