Archive.is uses Google’s captcha to block Tor users.
Here is a sample page: https://archive.is/qntuk
Fortunately, Archive.org still works, it seems: https://web.archive.org/web/20150724045015/https://archive.is/qntuk
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I don’t know about the Russian background, but I thought they are a single person maintained sites too. I knew it from the archive.is × Brave Browser issue on github 2 weeks ago.