Internet archiving services like the internet wayback machine work by rehosting content from other website. However, many websites in their term explicitly disallow people to frame their website or rehost their content. So my question is, how are internet archive websites allowed to work?
As a cursory search, I've found that a lot of websites have the phrase (or variants):
Under no circumstances may you “frame” the websites or any of their content or copy portions of the websites to a server, except as part of an Internet service provider’s incidental caching of pages.
Yet, many of the sites that have this phrase are archived on archive.org
My initial thoughts are that these websites don't have a problem with what archive.org is doing, so they don't pursue any legal action. However, it seems that archive.org is blatantly violating a huge number of websites terms. Although I have not legal experience, it seems that this could easily open themselves up to a class action lawsuit. Does anybody have any thoughts on this?
Rehosting website - This question mentions that rehosting websites violates copyright unless explicitly allowed.