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Install a free Let's Encrypt SSL certificate on a website
Update 07/06/2026
This guide explains how to install a free SSL certificate from Let's Encrypt on a website hosted by Infomaniak.
Introduction
- Once the certificate is installed, your website will be accessible via
httpandhttps… - If you want to include a domain alias that was recently added to your site, which already had a certificate, you need to update it.
- For multiple subdomains, please refer to this other guide.
- Let's Encrypt limits certificate installation to:
- 100 subdomains
- 20 certificates per 7 days per registered domain
- 5 unsuccessful requests per account per hostname per hour
Install a free SSL certificate on a site
Prerequisites
- For the installation to be possible, the DNS records for the domain name must be correctly configured to point to the site in question.
- If a change has just been made at this level, some operations may not be functional immediately.
To access the websites to install an SSL certificate:
- Click here to access the management of your site on the Infomaniak Manager (need help?).
- Click on the action menu ⋮ located to the right of the website in question.
- Click on Install an SSL certificate:

- Choose the free certificate.
- Click on the Next button:

- Check or select the domains concerned.
- Click on the Install button:

- Wait a few minutes for the certificate to be obtained for the website.
Refer to this other guide if you encounter SSL errors and to this other guide specifically if you are using Cloudflare.
Link to this FAQ: https://faq.infomaniak.com/2130
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