What is the actual goal of citing the "access date/time" of when you access a URL? For example:
Bruce Bower (July 17, 2010). "Serbian site may have hosted first copper makers". ScienceNews. Retrieved 22 April 2017.
Or sometimes thanks to
web.archive.org, you get some that archive the URL:
Allen, Michael J.; et al., eds. (2012). Is There a British Chalcolithic?: People, Place and Polity in the later Third Millennium (summary). Oxbow. ISBN 9781842174968. Archived from the original on 2016-10-05. Retrieved 2016-02-02.
If URLs can change willy-nilly, what is the point of referencing the access date? The URL could become dead at which point the source/citation seems useless, or the content could be changed and the original content at the retrieval date can no longer be found. So I don't understand why this practice is in place, and yet I don't have a better alternative.