HTTPS not working with custom domain on VPS using Dokploy

[Rajavel485]

To Reproduce

Steps I followed:

Set up projects via Dokploy — all run fine individually.

Followed domain setup guide from your docs:

Created a certificate in Dokploy for my domain.

Added the domain to my project in Dokploy.

Pointed my domain to my VPS IP using Cloudflare DNS (A record).

Tried accessing the domain via browser.

Current vs. Expected behavior

Expected Behaviour:

I expect my domain to be accessible securely over HTTPS.

Actual Behaviour:
HTTP connection only works

Provide environment information

VPS provider: NetCup

The Dokploy environment is up and running.
The domain is managed via Cloudflare (A record set to VPS IP).
Ports 80 and 443 are open.

Project Running port is 8888

Using Dokploy’s built-in cert and domain setup.

Which area(s) are affected? (Select all that apply)

Traefik

Are you deploying the applications where Dokploy is installed or on a remote server?

Remote server

Additional context

I’m currently using Dokploy on my VPS (NetCup) and have deployed multiple projects (e.g., Next.js and Go). Everything works well locally and on the VPS IP, but when I try to connect a custom domain, I get a "Connection Not Secure" issue — the domain is only accessible via HTTP, and HTTPS is not working.

The domain only loads over HTTP (http://app.example.com)

Attempting to access via HTTPS (https://app.example.com) gives "Connection Not Secure" or a certificate-related error.

The SSL certificate seems not to be applied, or something might be misconfigured.

Will you send a PR to fix it?

Yes

[SashaGoncharov19]

Are you using cloudflare as DNS resolver for your domains?

[Rajavel485]

yes

[SashaGoncharov19]

You need to set SSL/TLS encryption to mode Full.

[Siumauricio]

Please check the documentation we have for cloudflare specifically https://docs.dokploy.com/docs/core/domains/cloudflare

I believe this also is related I apply some improvements in the web server section to have the https toggle #1601

fixed in #1637

[Rajavel485]

I have referred to the above comments and referral URL, Treafik. but still not figure it out. please refer the images i attached help me out of this

[tidewatch]

@Rajavel485, were you able to resolve this issue? Experience the same problem.

[xstarsvn]

i have same problem, config as docs but still no ssl

[pivot-dennis]

same by me !

[SashaGoncharov19]

Please, set SSL/TLS encryption to mode Full, not Full (Strict)

[antontx]

I have the same issue, I have two containers (1x react frontend and 1x hono backend) and set web.example.com to the frontend and api.example.com to the backend. for both i activated https via lets encrypt but only web.example.com can be accessed via https

I am not using cloudflare but set both api. and web.example.com to point to my server

[SashaGoncharov19]

@antontx Check if you have correct ports linked to your backend.