# Differences between Let's Encrypt SSL certificates and traditional CA-issued certificates

> Compare free Let's Encrypt certificates with paid CA-issued certificates on validity, validation level and support.

Source: https://helpcenter.ruachost.com/ssl-security/ssl-certificates/differences-between-lets-encrypt-ssl-certificates-and-traditional-ca/

When securing your website, you can choose between **Let’s Encrypt SSL certificates** (free, automated) and **traditional CA‑issued certificates** (paid, with extended features). Both provide encryption, but they differ in trust level, support, and functionality.

## Let’s Encrypt SSL Certificates

- **Free of charge** → No cost to issue or renew.
- **Automated issuance** → Certificates are created and installed quickly using the ACME protocol.
- **Short validity** → Certificates are valid for **90 days** and must be renewed frequently.
- **Domain validation only (DV)** → Confirms domain ownership but does not verify organization identity.
- **No warranty or liability coverage** → If compromised, there is no financial protection.
- **Community support only** → No dedicated staff for troubleshooting or installation help.

## Traditional CA‑Issued Certificates

- **Paid certificates** → Cost varies depending on validation level and provider.
- **Longer validity** → Typically valid for **1 year** (up to 13 months maximum by industry standards).
- **Multiple validation levels**:

  - **DV (Domain Validation)** → Confirms domain ownership.
  - **OV (Organization Validation)** → Verifies business identity.
  - **EV (Extended Validation)** → Highest trust, shows company name in browser address bar.
- **Warranty included** → Financial protection if the certificate fails or is mis‑issued.
- **Dedicated support** → Providers like DigiCert, Sectigo, or GlobalSign offer professional help.
- **More options** → Wildcard SSLs, multi‑domain SSLs, and advanced features available.

## Key Differences

| Feature | Let’s Encrypt SSL | Traditional CA‑Issued SSL |
| --- | --- | --- |
| **Cost** | Free | Paid (varies by provider) |
| **Validity Period** | 90 days | Up to 13 months |
| **Validation Level** | DV only | DV, OV, EV options |
| **Warranty** | None | Included |
| **Support** | Community only | Dedicated staff |
| **Certificate Options** | Limited | Wildcard, multi‑domain, EV |

> **Note:**
- Let’s Encrypt is ideal for **personal sites, blogs, or small projects** where cost is a concern.
- Traditional CA‑issued SSLs are recommended for **business, e‑commerce, and enterprise sites** requiring higher trust and support.
- Both options provide encryption, but only CA‑issued SSLs offer extended validation and warranties.