Commonly known as SSL (Secure Socket Layer), today it’s called Transport Layer Security (TLS). This is an upgraded version of SSL, and both of these things are options for a Security certificate for websites. Steps we take to secure websites include redirecting http to https. We also deploy security layers when sites utilize payment processing or other sensitive information. But at this point in web development, Google’s algorithms pretty much want every site to be a secure site, even if no sensitive information is being transferred. So, if we’re building a site for you, you’ll get familiar with security terms.