Sorry; I shouldn’t have written Cloudflare specifically. The CAPTCHA page now contains scripts from Google, not Cloudflare. I have corrected my comment.

How do you know this?

Because a couple months ago, archive.is/archive.today started showing me CAPTCHA pages instead of the archived articles when I use Firefox with scripts disabled. The current page contains scripts hosted by Google, which I won’t enable, so I can’t read the archived articles.

What about ghostarchive.org?

I haven’t used that site enough to have a consistent picture of what it’s doing. When I tried it a few minutes ago, it directed me to a CAPTCHA wall for submitting an article, but not for reading. I’ll try to remember to look at it again periodically, to be able to answer this question in the future.