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How Do SSL Certificates Work?

An SSL certificate encrypts the connection to your website. See how it works, free versus paid SSL, and how to fix a Not secure warning.

Ruachost Editorial8 November 2026 5 min read
How Does Web Hosting Work?

Short answer: An SSL certificate (technically TLS) encrypts the connection between a visitor's browser and your website, so passwords, card details and messages cannot be read in transit. It also proves your site is the domain it claims to be. Browsers show a padlock when it works and a "Not secure" warning when it is missing.

What happens when someone opens your site#

  1. The browser connects to your server over HTTPS.
  2. The server presents its certificate.
  3. The browser checks the certificate is valid and issued for your domain.
  4. The two agree on a private key, and all traffic is encrypted.

Why a small business needs SSL#

  • It removes the "Not secure" warning that scares customers.
  • It protects logins and payments.
  • HTTPS is a Google ranking signal.
  • Payment gateways and browsers expect it.

Free or paid SSL?#


Free SSL

Paid SSL

Encryption

Yes

Yes

Included with hosting

Yes, on every Ruachost plan

No

Wildcard coverage

Rarely

Yes (wildcard product)

Typical use

Blogs, small sites, stores

Sites hosted elsewhere, many subdomains

Every Ruachost hosting plan includes free SSL. If you need a paid certificate, Ruachost sells RapidSSL at ₦35,000 per year and RapidSSL Wildcard at ₦223,000 per year, payable in naira. See the SSL options.

How to fix a "Not secure" warning#

  1. Check a certificate is installed and has not expired.
  2. Make sure your site address starts with https://.
  3. Redirect http:// traffic to https://.
  4. Fix mixed content, meaning images or scripts still loading over http.
  5. If you host with Ruachost and the warning stays, contact support.

SSL protects the connection to your website. It does not protect your email. For that, read DKIM, SPF and DMARC explained. Comparing providers? See which company offers SSL protection with web hosting.

Frequently asked questions#

Do I need to pay for SSL?#

Not if your host includes it. Every Ruachost hosting plan includes a free certificate.

How long does an SSL certificate last?#

Free certificates usually renew automatically. Paid RapidSSL certificates at Ruachost are sold yearly.

Does SSL slow my site?#

No. The overhead is negligible on modern servers.

Does SSL help SEO?#

HTTPS is a ranking signal, and browsers warn visitors on sites without it, which hurts trust and conversions.

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