Though there isn’t an SSL certificate specifically made for WordPress, any trusted SSL certificate will work with WordPress blogs and sites.
Think of a “WordPress SSL certificate” as an SSL certificate that simply works with WordPress.
Owning a trusted SSL certificate proves that you are the substantiated owner of your site. After you’ve deployed and installed the SSL certificate, your site appears with HTTPS and the green padlock icon in the browser search bar.
Trust indicators like HTTPS and the green lock prove your site has been vetted and is owned by the person or business it purports to. When a visitor’s browser reaches out to your site, it shows in their browser search bar that you’re protecting your data – and by proxy, their data.