Absolute and Relative Locations
Relative locations (URLs) are resolved according to the location (URL) of the containing (starting) document!
Absolute or Fully Qualified URLs
Absolute, or fully-qualified, URLs specify the complete information (scheme, host, port, path).
https://news.harvard.edu/gazette/story/2020/07/public-health-experts-unite-to-bring-clarity-to-coronavirus-response/
Relative or Partial URLs
Relative, or partial, URIs specify partial information. The information not provided is resolved from the current location.
<a href="slide2.html">Slide 2</a>
Relative to Server Root
Is this relative or absolute? Scheme, host, and port would be resolved from current location, but path is absolute
<a href="/copyright.html">copyright information</a>