SSL Certificates is most important to websites?

Having an SSL ensures that the sensitive data of your website's visitors will be transferred over a secure network.

First and foremost, SSL certificates will protect the sensitive data transmitted from and to your website. Such information can be login details, signups, addresses and payment or personal information. SSL certificates will encrypt the connection and help protect your visitors’ data from being misused by attackers.

Yes, an SSL Certificate is the most important factor for any website, whether you are a small biz or large ecommerce website. You must know about the Google's latest security changes and HTTPS is the hot change for the website which may affect a lot. If your website is still a lack of HTTPS, your visitors may face security issues. Check out this link to catch more update about SSL certificate.