Let’s Encrypt vs Paid SSL Certificates

Let’s Encrypt gives away free, automated certificates that power a huge share of the secure web. So when, if ever, is a paid certificate worth it? The honest answer for most sites is “never” — but there are real exceptions.

What Let’s Encrypt is

Let’s Encrypt is a free, non-profit Certificate Authority that issues Domain Validation (DV) certificates. Two things make it distinctive: the certificates cost nothing, and issuance and renewal are fully automated through a protocol called ACME. Instead of buying and manually installing a certificate once a year, a small agent on your server proves domain control and installs a fresh certificate on a schedule — typically with zero human involvement after setup.

The 90-day lifetime

Let’s Encrypt certificates are valid for 90 days, much shorter than the year-plus terms of older paid certificates. That sounds like a hassle, but it’s the opposite: short lifetimes force automation, and automation is what prevents the classic outage of a certificate quietly expiring. Tools like Certbot renew well before the deadline, usually around the 60-day mark. The industry as a whole is moving toward shorter lifetimes — our expiry monitoring guide covers why.

What paid certificates add

Paid certificates use the same encryption, so you’re never paying for a “more secure” connection. What the money buys is some combination of these:

• Higher validation. Let’s Encrypt only offers DV. If you need OV or EV — where the CA verifies your legal business identity — you need a commercial CA.
• Warranties. Paid certificates often carry a financial warranty. It rarely matters in practice, but some compliance frameworks or procurement policies require one.
• Support. A paid CA gives you someone to call. Let’s Encrypt is community-supported, with no ticketed help desk.
• Longer terms & convenience features. Some businesses prefer managed dashboards, longer manual cycles, or bundled tools.

	Let’s Encrypt	Paid certificate
Cost	Free	Paid
Validation levels	DV only	DV, OV, EV
Renewal	Automated (ACME)	Often manual
Lifetime	90 days	Up to ~1 year
Support	Community	Vendor support
Encryption strength	Full	Full

When free is the right answer

For personal sites, blogs, small businesses, SaaS apps and most e-commerce, Let’s Encrypt is not a compromise — it’s the better engineering choice. It’s free, it renews itself, and it removes the single most common cause of certificate outages: forgetting to renew. Most managed hosts and control panels have one-click Let’s Encrypt integration built in.

When to consider paying

Reach for a paid certificate when a specific requirement forces it: a compliance framework or enterprise customer that mandates OV/EV or a warranty, an environment where you genuinely need vendor support, or an internal policy you can’t change. Outside those cases, paying more doesn’t buy you a more secure site — it buys identity assurance and a support contract.

Get the rest right

Whichever route you take, the certificate is only part of a healthy HTTPS setup. Make sure you redirect HTTP to HTTPS, eliminate mixed content, enable security headers, and confirm everything with a free scan.

Frequently asked questions

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