Does Let's Encrypt support sub-subdomains

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My domain is:

My hosting provider, if applicable, is:
Heroku + Cloudflare

I’ve installed the certificate generated by certbot onto Heroku for, added the domain to Heroku, and have Cloudflare forcing https. I’m still getting unsecured, has anyone else set up a sub-subdomain?

Let’s Encrypt does support sub-subdomains, but Cloudflare doesn’t - at least not with their free offering.


This is correct. They also do not support it for their $20 offering. But “greying out the cloud” fixed the issue

hi @mistakevin

If I am adding DNS records for the purpose of HTTP validation I always grey out

This is because cloudflare with automatically redirect traffic to 443 which won’t work for the HTTP challenge


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