Just for fun, I tried signing up for litessl.cn/, the free Chinese ACME CA (powered by TrustAsia), using the browser translator.

After going through 4-5 captchas, one of which was unsolvable, they want to verify my phone number.

Dunno if it works if you're not Chinese, and I'm not sure I want my identity in a government cryptography database (too late), so I guess I'll give up.

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