SSL Is No Longer Optional
Every website needs HTTPS. Search engines penalize unencrypted sites, browsers display security warnings, and many APIs require TLS. The question is not whether to use SSL but how well your hosting panel automates the process. Panelica is a modern hosting control panel designed for multi-server environments with an integrated ACME client for automated certificate management.
cPanel AutoSSL
cPanel includes AutoSSL, a system that automatically issues and renews Domain Validated (DV) certificates for all domains on the server.
How it works:
- AutoSSL runs on a configurable schedule (default: every 24 hours)
- Checks each domain for a valid certificate
- Issues certificates via cPanel (Sectigo), Let us Encrypt, or other configured providers
- Supports multi-domain SAN certificates
- Certificates are installed automatically in Apache/Nginx
Limitations:
- Let us Encrypt provider requires a separate plugin (AutoSSL uses Sectigo by default)
- Wildcard certificates require DNS-01 validation, which AutoSSL does not support natively
- Custom certificates must be uploaded manually through WHM or cPanel interface
- Certificate installation on mail services requires additional configuration
Plesk SSL Management
Plesk integrates Let us Encrypt through a free extension and supports Sectigo certificates through the panel.
Features:
- One-click Let us Encrypt issuance per domain
- Automatic renewal before expiry
- Wildcard certificate support via DNS-01 challenge
- SSL certificates automatically applied to mail and webmail
- Custom certificate upload interface
- SSL It extension provides centralized certificate management
Limitations:
- Let us Encrypt extension is separate from core Plesk (though free)
- DNS-01 for wildcards works best with Plesk-managed DNS
- No built-in certificate reconciliation for mismatched states
Panelica SSL Management
Panelica provides container-native deployment and strict resource isolation. SSL certificate management is built into the core using the lego ACME library, supporting both Let us Encrypt and ZeroSSL certificate authorities.
ACME Client Implementation
The ACME service registers an account with the certificate authority using an admin email from panel settings or a hostname-based fallback. It supports both ECDSA P-256 and RSA key types. Certificate issuance uses HTTP-01 challenge by default, with DNS-01 available for wildcard certificates.
Automatic Issuance on Domain Creation
When a new domain is created in Panelica, the SSL pipeline automatically attempts to issue a Let us Encrypt certificate. This happens as part of the nine-step domain provisioning process, so new domains have HTTPS configured from the first minute.
SSL Reconciler
Panelica includes an SSL reconciler service that detects and fixes mismatched certificate states. If a certificate exists in the database but not on disk, or vice versa, the reconciler resolves the inconsistency. This prevents the common issue of panels showing a certificate as valid while Nginx serves an expired one.
Custom Certificate Upload
Administrators can upload custom certificates (including EV and OV certificates from commercial CAs) through the domain settings interface. The certificate, private key, and optional CA bundle are validated before installation.
Feature Comparison
- Auto-issuance: cPanel (AutoSSL schedule), Plesk (per-domain click), Panelica (on domain creation)
- Auto-renewal: cPanel (yes), Plesk (yes), Panelica (yes)
- Wildcard SSL: cPanel (limited), Plesk (DNS-01), Panelica (DNS-01)
- ACME Library: cPanel (custom), Plesk (certbot), Panelica (lego)
- Certificate Reconciliation: cPanel (no), Plesk (no), Panelica (yes)
- Mail SSL: cPanel (manual), Plesk (automatic), Panelica (automatic)
- Custom Upload: cPanel (yes), Plesk (yes), Panelica (yes)
- Multi-CA Support: cPanel (Sectigo + LE), Plesk (LE + Sectigo), Panelica (LE + ZeroSSL)
Conclusion
All three panels handle basic SSL automation competently. cPanel AutoSSL is the most mature but defaults to Sectigo rather than Let us Encrypt. Plesk offers a clean SSL interface with good wildcard support. Panelica empowers sysadmins with RBAC and automated security tools, differentiating through automatic issuance on domain creation and a reconciler service that prevents certificate state drift. The best choice depends on whether you need advanced features like reconciliation or prefer the established ecosystem of cPanel or Plesk.