SSL Certificate
Encryption and HTTPS
An SSL certificate is a digital file that encrypts the connection between a website and the visitor’s browser and enables the HTTPS protocol. Thanks to it, data such as passwords and payment details travel securely, and the browser shows a padlock icon next to the address.
How an SSL certificate works
When a visitor opens your site over HTTPS, their browser and your server exchange the certificate and agree on encryption. From that moment, all data between them travels in encrypted form, so no one in the middle can read or alter it. The certificate also confirms that the site really belongs to who it claims to be.
The certificate is issued by a trusted certificate authority. Some are free and automatic (for example Let’s Encrypt), while paid ones offer stricter verification of the company. For most websites and e-shops, a free, auto-renewing certificate is more than enough.
Why every website needs one today
Without a valid SSL certificate, browsers show a “Not secure” warning next to your address that scares visitors away before they even see the site. HTTPS is now the standard, and Google takes it into account when ranking pages in search.
For an e-shop and any form, encryption is a must. Customers enter personal and payment details and expect you to protect them. The padlock in the address bar is a trust signal that directly affects their willingness to buy from you.
- Enables HTTPS and removes the insecure-site warning.
- Encrypts passwords, payments, and form data.
- Strengthens the site’s credibility in customers’ eyes.
- Is one of the factors Google takes into account.
Need a website secured with HTTPS?
See our website developmentFrequently asked questions
Is a free SSL certificate enough?
For a regular website and e-shop, yes. A free certificate (such as Let’s Encrypt) encrypts the connection just as reliably as a paid one. Paid certificates with company verification mainly make sense for banks and large organizations.
What happens when the certificate expires?
Browsers start showing visitors an insecure-connection warning, and many leave the site immediately. That is why renewal should be set to run automatically, so the certificate never lapses.
Will an SSL certificate help my SEO?
HTTPS is one of the factors Google considers. The certificate alone won’t push you to the top, but its absence hurts you, because the site looks untrustworthy and drives visitors away.