The Internet Archive has extended our reader privacy protections by making the site encrypted by default. Visitors to archive.org and openlibrary.org will https unless they try to use http.
Today we are going further than this. Based on the revelations of bulk interception of web traffic as it goes over the Internet, we are now protecting the reading behavior as it transits over the Internet by encrypting the reader’s choices of webpages all the way from their browser to our website. We have done this by implementing the encrypted web protocol standard, https, and making it the default. It is still possible to retrieve files via http to help with backward compatibility, but most users will soon be using the secure protocol.
Users of the Wayback Machine, similarly will use the secure version by default, but can use the http version which will help playback some complicated webpages.