Can certificates be re-generated if they are lost or files are corrupt?

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. |, so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is:,,,,

I ran this command:
certbot certonly --standalone

It produced this output:
Requesting a certificate for and 4 more domains

Successfully received certificate.
Certificate is saved at: C:\Certbot\live\\fullchain.pem
Key is saved at: C:\Certbot\live\\privkey.pem
This certificate expires on 2023-01-26.
These files will be updated when the certificate renews.
Certbot has set up a scheduled task to automatically renew this certificate in the background.

If you like Certbot, please consider supporting our work by:

Fri 28/10/2022 12:27:01.33 C:\Apache24\bin >

My web server is (include version):
Apache24 -OR- my own server written in node.js. i alternate between the two as i develop my server

The operating system my web server runs on is (include version):
Windows 10

My hosting provider, if applicable, is:
self-hosted at my home

I can login to a root shell on my machine (yes or no, or I don't know):
no, i use Remote Desktop Connection

I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
my sites are built using node.js

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot):
certbot 1.31.0

there are a ratelimit for 5 duplicate certificate per week, so if you are in that limit you are free to make same certificate: but you are likely lost acme account key, so you will need to be complate challange for again.


A proper backup of all relevant files would mitigate what you're asking here. No regeneration should be necessary.