ssl-https
Installation
SKILL.md
SSL/HTTPS — Technical SEO
HTTPS is a confirmed Google ranking signal since 2014. More importantly, mixed content blocks resource loading and can cause LCP failures.
Certificate types
| Type | Validation | Issuance time | When to use |
|---|---|---|---|
| DV (Domain Validation) | Domain control only | Minutes | Blogs, informational sites |
| OV (Organization Validation) | Domain + organization | 1-3 days | Business sites |
| EV (Extended Validation) | Full legal verification | 1-7 days | Banks, e-commerce (less relevant today) |
Wildcard (*.domain.com) |
Covers all subdomains | Minutes–days | Sites with multiple subdomains |
| SAN (Subject Alternative Names) | Multiple domains in one cert | Minutes–days | Multi-domain hosting |
Let's Encrypt: Free DV certificate, auto-renewing, supported by most hosting panels (cPanel, Plesk, Hostinger hPanel). Sufficient for most SEO client sites.