Let's Encrypt certificates adhere to the same security standards and provide the same level of encryption as commercial certificates. However, Let's Encrypt certificates have a much shorter validity period of just 90 days compared to one or two years for commercial certificates. The short validity period could pose a problem due to the need for regular renewals. We have taken care of this on our side as we have automated the renewal process, so your certificates will remain valid until you manually deactivate them.