Absolute URLs
All absolute URLs use complete URL addresses for their link destinations:
<a href=“http://escience.anu.edu.au/lecture/index.en.html”>eScience
lectures</a>
Any Web page can be referenced by an absolute URL as long as you have its
correct address
Issues
You may not yet know the correct address
What if a set of pages (a web site) moves from one host to another ?