CSS as privacy diagnostic tool - mark all unsecure or unencrypted content/links. Add this to your CSS to see a red frowny face next to your non-SSL content.

css-diagnostic-for-https.css

.content [href^="http:"]::after {
  content: "\2639\ (unencrypted link)";
  display: inline-block;
  width: .8em;
  height: .8em;
  text-indent: .8em;
  white-space: nowrap;
  color: red;
}