Free vs Paid · DV/OV/EV · Setup Steps
| Type | Validation | Cost | Best For | Trust Level |
|---|---|---|---|---|
| DV (Domain) | Domain ownership only | Free–$50/yr | Blogs, personal sites | Basic |
| OV (Organization) | Business verified | $50-200/yr | Business sites | Medium |
| EV (Extended) | Full legal verification | $100-500/yr | Banks, eCommerce | Highest |
| Wildcard | All subdomains | $50-300/yr | Multiple subdomains | Varies |
| Provider | Type | Auto-Renew | Wildcard | Setup |
|---|---|---|---|---|
| Let's Encrypt | DV | Yes (90 days) | Yes | CLI / host panel |
| Cloudflare | DV (shared) | Auto | Yes | 1-click in dashboard |
| ZeroSSL | DV | Yes | Paid only | Web dashboard |
| AWS ACM | DV | Auto | Yes | AWS services only |
For 99% of websites, free Let's Encrypt or Cloudflare SSL is sufficient. No SEO difference between free and paid SSL.
| Host | Free SSL | Setup Method |
|---|---|---|
| Cloudflare Pages | Auto | Enabled by default, zero config |
| Vercel / Netlify | Auto | Enabled by default |
| SiteGround | 1-click | Site Tools → Security → SSL |
| Bluehost | 1-click | cPanel → Security → SSL/TLS |
| GoDaddy | Manual | Let's Encrypt via cPanel or buy |
| Custom VPS | CLI | Certbot: sudo certbot --nginx |
| Issue | Cause | Fix |
|---|---|---|
| Mixed content warning | HTTP resources on HTTPS page | Update all URLs to https:// |
| Certificate expired | Auto-renew failed | Re-run certbot or check host panel |
| "Not Secure" warning | No SSL or wrong redirect | Install SSL + add HTTP→HTTPS redirect |
| ERR_CERT_COMMON_NAME_INVALID | SSL for wrong domain | Reissue cert for correct domain |
| Redirect loop | Double HTTPS redirect | Check .htaccess or host + Cloudflare settings |
| Reason | Impact |
|---|---|
| Google ranking factor | Required since 2014 |
| Chrome "Not Secure" warning | Drives visitors away |
| Data encryption | Protects form submissions |
| Customer trust | Padlock icon = credibility |
| PCI compliance | Required for payment processing |