SSL Certificate is used by websites to establish secure connections between the host server and the visitor. A website with an SSL certificate can be accessed over the HTTPS protocol and usually has a padlock sign next to the URL. This means that all data transferred between you and the website you visit is encrypted and confidential, so hackers cannot monitor network traffic. It is recommended that each website is issued a separate SSL certificate, this is very important for websites that handle sensitive data or e-commerce sites with online stores.
Search ranking improvements
Making improvements to the user experience!
Conclusion
After all, Google algorithms have learned over the last few years that unsecured websites do not provide a good user experience and so, if you do not have an SSL certificate, Google will undoubtedly throw your website back in the SERPs. People who leave a website after seeing an unsafe message will be providing Google with data that this website is not worth ranking high for that keyword.