# How to get your (already generated) .cer file certified by Let's Encrypt **URL:** \ **Category:** Help\ **Created:** [April 25, 2018, 7:18pm UTC](https://community.letsencrypt.org/t/how-to-get-your-already-generated-cer-file-certified-by-lets-encrypt/60449 "2018-04-25T19:18:11Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![abhisun](https://avatars.discourse-cdn.com/v4/letter/a/ed8c4c/32.png) [@abhisun](https://community.letsencrypt.org/u/abhisun)\ **Post date:** [April 25, 2018, 7:18pm UTC](https://community.letsencrypt.org/t/how-to-get-your-already-generated-cer-file-certified-by-lets-encrypt/60449/1 "2018-04-25T19:18:11Z")
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. [https://crt.sh/?q=example.com](https://crt.sh/?q=example.com)), 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: I did not run any command. I want to understand how to certify an already generated .cer file. It produced this output: My web server is (include version): I think application runs on Jetty server. The operating system my web server runs on is (include version): Linux My hosting provider, if applicable, is: I can login to a root shell on my machine (yes or no, or I don’t know): yes I’m using a control panel to manage my site (no, or provide the name and version of the control panel): ---
**Author:** ![danb35](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/danb35/32/70869_2.png) [@danb35](https://community.letsencrypt.org/u/danb35)\ **Post date:** [April 25, 2018, 8:13pm UTC](https://community.letsencrypt.org/t/how-to-get-your-already-generated-cer-file-certified-by-lets-encrypt/60449/2 "2018-04-25T20:13:17Z")
> [@abhisun](#): > > I want to understand how to certify an already generated .cer file. You don't, assuming that the .cer file is a certificate already. You generate a new certificate using Certbot or one of the many other clients. ---
**Author:** ![abhisun](https://avatars.discourse-cdn.com/v4/letter/a/ed8c4c/32.png) [@abhisun](https://community.letsencrypt.org/u/abhisun)\ **Post date:** [April 25, 2018, 8:24pm UTC](https://community.letsencrypt.org/t/how-to-get-your-already-generated-cer-file-certified-by-lets-encrypt/60449/3 "2018-04-25T20:24:26Z")
I see. Can you please point me to the best place get the list of commands (instructions to get the certificate?) Thank you very much!! ---
**Author:** ![danb35](https://sea3.discourse-cdn.com/letsencrypt/user_avatar/community.letsencrypt.org/danb35/32/70869_2.png) [@danb35](https://community.letsencrypt.org/u/danb35)\ **Post date:** [April 25, 2018, 8:35pm UTC](https://community.letsencrypt.org/t/how-to-get-your-already-generated-cer-file-certified-by-lets-encrypt/60449/4 "2018-04-25T20:35:53Z")
> **[Getting Started - Let's Encrypt - Free SSL/TLS Certificates](https://letsencrypt.org/getting-started/)** > > To enable HTTPS on your website, you need to get a certificate (a type of file) from a Certificate Authority (CA). Let’s Encrypt is a CA. In order to get a certificate for your website’s domain from Let’s Encrypt, you have to demonstrate control over... ---
**Author:** ![system](https://global.discourse-cdn.com/letsencrypt/original/3X/c/a/ca6c06ea1ea201324bba7048c6841ce60236468d.png) [@system](https://community.letsencrypt.org/u/system)\ **Post date:** [May 25, 2018, 8:36pm UTC](https://community.letsencrypt.org/t/how-to-get-your-already-generated-cer-file-certified-by-lets-encrypt/60449/5 "2018-05-25T20:36:03Z")
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