Both a free Let’s Encrypt certificate and a paid one give visitors a trusted HTTPS connection. The differences lie in validation depth, how issuance and renewal are handled, support and paperwork. Since March 2026 the maximum validity of any publicly trusted certificate is 200 days, heading to 100 days in 2027 and 47 days by 2029, so every certificate now needs automated renewal, free or paid.
What is the same
- Browsers trust both for the padlock on a domain-validated certificate.
- Encryption strength depends on your server settings, not on the issuer’s brand.
- Search engines do not rank a paid certificate above a free one.
- An expired certificate looks the same to visitors, whatever it cost.
What differs
| Topic | Let’s Encrypt | Paid |
|---|---|---|
| Price | Free | Per term or subscription |
| Validation levels | Domain only | Domain, organisation and extended |
| Issuance | Automated through ACME | Panel request, sometimes with manual checks |
| Wildcard | Yes, through a DNS challenge | Yes, often with simpler purchasing |
| Support and paperwork | Community resources | Invoices, warranty and named support |
When free is the right default
- Brochure sites, blogs and most small shops on hosting with automatic renewal.
- You control DNS and can run ACME, or the hosting panel does it for you.
- Many short-lived hostnames in an automated pipeline.
- No buyer or auditor requires an organisation-validated certificate.
Let’s Encrypt does not send expiry reminder emails, so rely on monitoring you set up yourself.
When paid makes sense
- A contract, tender or insurer requires an organisation-validated or extended certificate.
- Finance wants an invoiced certificate from a commercial authority.
- You want vendor support when issuance fails.
- You prefer a commercial wildcard or SAN pack with account-managed renewal.
Paid does not mean better ranking. It buys validation depth, process and paperwork. Read DV, OV and EV for an online shop to see which tier fits, and wildcard vs multi-domain for coverage.
Browse commercial options on SSL certificates and check what your web hosting panel already issues.
Frequently asked questions
Is Let’s Encrypt less secure?
For encryption and browser trust on a domain-validated certificate, no meaningful gap exists when both are installed and renewed correctly.
Why do free certificates expire so fast?
Short lifetimes force automation and limit the damage of a leaked key. Treat renewal as mandatory.
Can I mix free on staging and paid on production?
Yes, and many teams do. Keep hostnames and redirects consistent.
Does Google prefer paid SSL?
No. It prefers working HTTPS with clean redirects.
