Overview
SSL certificates encrypt traffic between your visitor’s browser and your server. Since 2018, Google has flagged any HTTP site as “Not Secure” in Chrome, so having one isn’t optional anymore. The question most site owners hit is whether a free certificate from Let’s Encrypt is good enough or whether they need to pay for one.
The short answer: for the vast majority of websites, Let’s Encrypt is completely fine. It provides the same 256-bit TLS encryption as any paid certificate. The browser padlock looks identical. There’s no SEO penalty for using it. But there are edge cases — mostly around warranty coverage, extended validation, and certain enterprise software compatibility — where paying makes sense.
This article breaks down the actual technical and practical differences so you can make an informed choice rather than an upsold one.
Prerequisites
- A registered domain name with DNS pointing to your hosting account
- Access to your hosting control panel (cPanel, Plesk, or WHM) or server root access
- For Let’s Encrypt: HTTP port 80 must be open and reachable (used for domain validation)
- For paid certificates: ability to receive email at an admin address on your domain, or DNS access for DNS-based validation
- If you’re on a firewall-restricted VPS, confirm that outbound connections to Let’s Encrypt’s ACME servers are allowed
What Let’s Encrypt Actually Is
Let’s Encrypt is a free, automated Certificate Authority (CA) run by the Internet Security Research Group (ISRG). It issues Domain Validated (DV) certificates. Domain validation just means the CA confirmed you control the domain — nothing about who you are as a business.
Most cPanel hosts (including Host & Tech shared and VPS plans) provision Let’s Encrypt certificates automatically through AutoSSL. You don’t have to do anything. The certificate installs itself and renews every 90 days in the background.
📝 Note: The 90-day validity period is intentional — it encourages automation and limits exposure if a certificate is ever compromised. Don’t let the short lifespan concern you; renewal is fully automated on properly configured servers.
What Paid SSL Certificates Add
Paid certificates come in three validation tiers. Understanding the difference matters before you spend money.
Domain Validated (DV)
Same validation level as Let’s Encrypt. A paid DV certificate from Comodo or Sectigo costs money but provides no additional trust signal to visitors compared to Let’s Encrypt. The only reason to buy one is if your platform doesn’t support Let’s Encrypt (more on that below).
Organization Validated (OV)
The CA verifies your business actually exists — checks business registration documents, phone number, physical address. This information is embedded in the certificate and visible if a user clicks the padlock and inspects the certificate details. Most visitors never do this, but it matters in B2B contexts where technical buyers sometimes check. OV certificates typically cost $50–$200/year depending on provider and features.
Extended Validation (EV)
The most rigorous verification. EV used to show a green company name bar in browsers, but Chrome and Firefox removed that UI in 2019. As of 2026, EV certificates still embed verified company details in the cert, but there’s no special visual treatment in major browsers. I’d be honest with you: the browser-visible value of EV has dropped significantly. Some regulated industries and enterprise procurement policies still require it, but if you’re buying EV purely for the visual trust signal, that ship has sailed.
Wildcard and Multi-Domain (SAN) Certificates
Let’s Encrypt does issue wildcard certificates (*.yourdomain.com), but only via DNS-01 challenge validation, which requires automated DNS API access. If your DNS provider supports it and you have the automation set up, free wildcards work well. If not, a paid wildcard certificate is the practical choice — it covers all subdomains with one cert you install manually.
Multi-domain (SAN) certificates covering dozens of unrelated domains are also available paid; Let’s Encrypt limits you to 100 SANs per certificate, which is enough for most use cases.
Side-by-Side Comparison
| Feature | Let’s Encrypt (Free) | Paid SSL |
|---|---|---|
| Encryption strength | 256-bit TLS 1.2/1.3 | 256-bit TLS 1.2/1.3 |
| Browser trust | Full (all major browsers) | Full |
| Validation type | DV only | DV, OV, or EV |
| Validity period | 90 days (auto-renews) | 1–2 years |
| Warranty | None | $10,000–$1.75M depending on tier |
| Wildcard support | Yes (DNS-01 only) | Yes (any validation method) |
| Cost | Free | ~$10–$300+/year |
The Warranty — What It Actually Means
Paid certificates advertise a warranty (sometimes up to $1.75 million). Here’s what that actually covers: if the CA makes a misissued certificate and a visitor suffers financial loss because of it, the CA pays out. In practice, this has almost never happened and the payout requires the CA to have been at fault, not you. The warranty protects visitors in theory — it’s not really a benefit to you as the site owner. Don’t buy a certificate primarily based on the warranty number.
When You Should Use Let’s Encrypt
- Personal blogs, portfolio sites, and small business websites
- Development, staging, and testing environments
- E-commerce stores that don’t have enterprise compliance requirements
- Any site on Shared Hosting plans where AutoSSL handles everything automatically
- Multi-tenant hosting environments where you need certificates across dozens of domains without per-domain cost
When You Should Pay for an SSL Certificate
- Your server environment blocks outbound ACME validation. Some corporate networks, certain firewall appliances, and older WHM configurations prevent Let’s Encrypt from completing its HTTP-01 or DNS-01 challenge. A manually installed paid cert sidesteps this entirely.
- You need OV or EV for compliance or enterprise contracts. Payment processors, government procurement, and some insurance platforms explicitly require OV or EV in their vendor agreements.
- Your platform doesn’t support ACME automation. Legacy Windows Server setups, certain load balancers, and some CDN configurations don’t have clean Let’s Encrypt integration. Installing a paid cert manually once a year is simpler than fighting automation.
- You need a wildcard cert without DNS API access. If your DNS is managed through a registrar with no API, automating DNS-01 validation for Let’s Encrypt wildcards isn’t feasible.
- You want a single cert for completely unrelated domains across different servers. A paid multi-domain SAN cert can be installed on multiple servers; Let’s Encrypt certs are tied to their issuance server by default.
📝 Note: If you’re running a Host & Tech VPS or dedicated server and aren’t sure whether your environment supports automated Let’s Encrypt renewal, open a support ticket before purchasing a paid cert. In most cases, we can get AutoSSL or Certbot working without the extra spend.
Common Issues & Troubleshooting
Let’s Encrypt certificate not auto-renewing (AutoSSL failure in cPanel)
The most common cause is that port 80 is blocked — either by a firewall rule or because your site forces HTTPS at the server level before Let’s Encrypt can complete HTTP-01 validation. Check WHM under SSL/TLS > Manage AutoSSL for the exact failure log. If port 80 is blocked, switch to DNS-01 validation using the cPanel Zone Editor or use Certbot with a DNS plugin.
Also check that the domain’s DNS A record actually points to the server running AutoSSL. Certificates issued for domains proxied through a CDN like Cloudflare (with the proxy orange-clouded) will fail HTTP-01 validation unless you temporarily disable the proxy.
Mixed content warnings after installing SSL
Your certificate is installed correctly but the browser still shows a warning because some page assets (images, scripts, iframes) are loading over http:// instead of https://. This isn’t a certificate problem — it’s a content problem. In WordPress, the Better Search Replace plugin can do a database-wide find-and-replace of http://yourdomain.com to https://yourdomain.com. For non-WordPress sites, check your HTML source and CDN asset URLs manually.
ERR_CERT_AUTHORITY_INVALID on older Android devices
Let’s Encrypt’s root certificate (ISRG Root X1) has been trusted natively since Android 7.1. Devices running Android 7.0 or earlier that haven’t updated their system trust store may show this error. This affects a very small percentage of real traffic today, but if your audience includes users on older devices, this is worth checking your analytics for. A paid certificate from an older CA with a longer-established root (like DigiCert or Sectigo) may have broader legacy device trust. Let’s Encrypt does have a cross-signature chain via IdenTrust DST Root CA X3, though that root expired in September 2021 — devices relying on it alone will fail.
Certificate shows correct but site still loads on HTTP
The SSL certificate is installed but you haven’t forced HTTPS yet. In cPanel, go to Domains > Redirects and add a permanent 301 redirect from HTTP to HTTPS. Alternatively, add the following to your .htaccess file:
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI} [L,R=301]⚠ Warning: If you’re behind Cloudflare, set your Cloudflare SSL mode to Full (Strict) before enabling this redirect. Using Flexible mode while forcing HTTPS at the server level creates a redirect loop.
Paid certificate not trusted — shows “issued by unknown authority”
You installed the certificate but forgot to include the intermediate (chain) certificates. Most paid CAs provide a bundle file (often named ca-bundle.crt or chain.pem). In cPanel, when installing under SSL/TLS > Install and Manage SSL, paste the full chain into the Certificate Authority Bundle (CABUNDLE) field. Without it, older clients that don’t support OCSP stapling will fail to validate the chain.
Frequently Asked Questions
Frequently Asked Questions
Is Let's Encrypt SSL safe for e-commerce and taking payments?
Yes. Let’s Encrypt provides the same encryption as any paid certificate — your customers’ payment data is protected equally. PCI-DSS compliance doesn’t require a paid certificate, just valid TLS. If your payment processor requires OV or EV specifically in their contract, you’ll need to pay, but most don’t.
Does using a free SSL certificate hurt my Google ranking?
No. Google confirmed that the type or cost of an SSL certificate has no bearing on search rankings. What matters is that HTTPS is enabled at all. Let’s Encrypt satisfies that requirement fully.
How do I install Let's Encrypt on my cPanel hosting account?
On most cPanel hosts, including Host & Tech shared hosting plans, Let’s Encrypt installs automatically through AutoSSL. You don’t need to do anything manually. Check under cPanel > SSL/TLS Status to confirm your domains are covered. If a domain shows as unprotected, click “Run AutoSSL” to trigger a fresh attempt.
Can I get a Let's Encrypt wildcard certificate for free?
Yes, but only using DNS-01 challenge validation, which requires API access to your DNS provider so the process can be automated. If your DNS registrar supports an API (Cloudflare, Route 53, and most major providers do), Certbot with a DNS plugin handles this cleanly. If you don’t have DNS API access, a paid wildcard certificate is easier to manage.
What happens if Let's Encrypt's automatic renewal fails and I don't notice?
Your certificate will expire and visitors will see a full browser security warning — “Your connection is not private” — which will effectively stop most people from accessing your site. Set up email alerts in WHM under AutoSSL settings, or use a free monitoring service like UptimeRobot’s SSL expiry check so you get notified before it becomes a problem.