archive.today doesn't use a real recaptcha, the cloudflare page isn't real either. it serves that as a punishment for using 1.1.1.1 DNS because the owner doesn't like that 1.1.1.1 doesn't send EDNS client subnets.
What do you mean by "a real recaptcha"? I just went to an archive.is page, and it's trying to load a script from www.google.com. Doesn't Google still own reCAPTCHA?
They're definitely trying to mimic the cloudflare captcha page, but...
>archive.today doesn't use a real recaptcha
How? It's loading the script from google, and the images/responses are from google to.