Fix · Domains and DNS

Browser warns "Your connection is not private" on my own domain

Not checked against the vendor's current screens

What you may see

The padlock is missing or a red warning shows

Most likely cause

The certificate does not cover this name, has expired, or the name still points to a server that has no certificate for it.

Check first (about two minutes)

Click the warning's details: does it say expired, wrong name, or untrusted?

The fix prompt

What you type here never leaves your browser. The search runs on this page, and nothing is sent to a server or to an AI.

The exact error or what you see

What you did before it happened

Kept only in this browser, on this device. Keys and passwords are removed before anything is saved.

Prompt language

You are a patient senior engineer who knows domain names and DNS settings and explains them to people who are not developers. I am not a developer, so explain every step in plain words and tell me exactly which button, menu or command you mean. If you are not sure about something, say so; do not guess.

Menu and button names change over time. If you cannot find a button or page I mention, say so and tell me what to look for instead of guessing.

THE PROBLEM
Browser warns "Your connection is not private" on my own domain

THE EXACT ERROR OR WHAT I SEE
[paste the exact error here]

WHAT I DID BEFORE IT HAPPENED
[write in a few words what you did before it happened]

MOST LIKELY CAUSE
The certificate does not cover this name, has expired, or the name still points to a server that has no certificate for it.

DO THESE STEPS, IN THIS ORDER
1. Read the certificate error type, and where the name points now.
2. For a wrong name: add the name to the host's domains and make the DNS point at the host. For expired: find who issues the certificate (usually the host, automatically) and why renewal failed.
3. Check CAA records and any proxy in front of the host.
Stop and tell me if what you see does not match a step. Do not skip ahead.

CHECK THAT IT WORKED
- https:// opens with a padlock on both the main name and www.
Tell me exactly what I should see on the screen when it works.

DO NOT CHANGE
- Do not tell visitors to click through the warning.
- Anything I did not ask about: the design, the text, other pages, other settings or the data.
- Do not delete files, data or branches, do not reset or force-push, and do not rewrite history, unless you first show me exactly what would be lost and I say yes.
- Do not paste, print or ask me to paste a password or secret key into this chat. If one is needed, tell me which settings page of the right service to store it in.

WHEN YOU FINISH
Explain in simple words what you changed (file by file or setting by setting), why you changed it, and how I can undo it.

Paste it into Claude, ChatGPT, Gemini or Cursor, then follow what it says.

After you tried it, did it work?

Steps

Read the certificate error type, and where the name points now.
For a wrong name: add the name to the host's domains and make the DNS point at the host. For expired: find who issues the certificate (usually the host, automatically) and why renewal failed.
Check CAA records and any proxy in front of the host.

Do not do this

Do not buy a certificate if the host provides one.
Do not tell visitors to click through the warning.

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