SSL certificates are getting more and more important because of privacy concerns and also search engines take them into account for calculating the SEO score.
Do you want to know how good your SSL certificate is? Take a look at SSL Labs, enter your website and let the tool do the job! You will get a detailled overview of your certificate and the rating it has.
For example my own certificate (it’s from Let’s Encrypt) has a A rating, that’s good, but not the best. With paid certificates you probably can get A+ labels (or more). Want to be sure if your certificate has a good rating? Just try it yourself!