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What is an SSL certificate?

Updated on 2026-07-18

An SSL certificate (Secure Socket Layer) is an essential tool for securing the data that travels between a server and the devices (clients) accessing it. Thanks to this protocol, information is exchanged in encrypted form, preventing third parties from intercepting or modifying it.

What it gives you

  • Data security: protects information sent and received by visitors —passwords, forms, payment data.
  • More trust: visitors see the padlock icon in the browser bar, which boosts your site's credibility.
  • Strong encryption: modern certificates use robust encryption, the same kind used in banking environments.

How to recognize a secured site

  • URL with HTTPS: the address starts with https:// instead of http://.
  • Padlock icon in the address bar, indicating the connection is encrypted.
  • Click the padlock to see the certificate details and the level of security.

How we help

At DISSAU we install and renew SSL certificates, configure the HTTP→HTTPS redirect, make sure all content loads securely (100% HTTPS), and monitor expiration so your site never goes down over a lapsed certificate. See also HTTP vs HTTPS.

Still stuck?

If you didn't find what you were looking for, write to us and we'll help with your specific case.

Contact DISSAU

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