Fix VERSION_OR_CIPHER_MISMATCH · Cloudflare SSL/TLS docs Waylon Walker Author Feb 5, 2025 1 min read !https://developers.cloudflare.com/ssl/troubleshooting/version-cipher-mismatch/ Copy this post URL Rich Markdown Text View Markdown View Text curl .ansi ERR_SSL_VERSION_OR_CIPHER_MISMATCH Learn how to troubleshoot ERR_SSL_VERSION_OR_CIPHER_MISMATCH when using Cloudflare SSL/TLS. Cloudflare Docs · developers.cloudflare.com Today I learned that cloudflare free tier universal certs do not support multilevel subdomains. By default, Cloudflare Universal SSL certificates only cover your apex domain and one level of subdomain.