Certbot Taking Long time to issue the cert (around 3-5 mins)

[siddukoppineti]

Hi everyone,

I’m currently using NPM version 2.11.3, and everything is working fine overall. However, I’ve noticed that issuing a certificate takes quite a long time:

• Issuing a cert only: around 3–5 minutes
• Issuing a cert with redirection enabled: around 7–8 minutes, plus another 2–3 minutes before the change takes effect

From my experience, using Key Vault ACMEbot, I’m usually able to issue a certificate in under 1 minute.
I’m curious to understand why certificate issuance in NPM takes so long.

After doing some research, it seems that the Certbot inside the NPM container loads all existing certificates before issuing a new one. My setup currently has more than 400 certificates, and it looks like Certbot might be spending about a minute just checking all of them.

Could this be the reason for the delay?

Has anyone else experienced this behavior, or found a way to optimize it?

Thanks in advance for any insights!