We’ve blocklisted archive.today; let’s clean up MathOverflow’s links to it

Update

It appears that, due to some site search shenanigans, there are far fewer posts needing edited than initially anticipated. As a result, the only posts needing attention are those within this search for archive.is.

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We’ve complied with the request to blocklist archive.today. This means that links to archive.today and its other domains are no longer permitted to be posted or edited into posts on the Stack Exchange network.

For MathOverflow, this means roughly 174 3 posts (see update) will need to be edited to remove this link in favor of more suitable replacements, as edits to these posts that do not remove these links will be blocked. We’d like to kick off a call-to-action for some cleanup assistance.

Replacements for these links are likely to be context-dependent, so if you choose to help out, use your best judgment when editing!

Myself and some other Community Managers will be around to help out and provide support if necessary.