What are some common SSL/TLS protocols that can cause 443 errors?

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Grade: Education Subject: Support
What are some common SSL/TLS protocols that can cause 443 errors?
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Older, deprecated protocols like SSLv3 or TLS 1.0 are increasingly incompatible with modern browsers and can cause 443 errors. Ensure your server is configured to use TLS 1.2 or TLS 1.3 for optimal security and compatibility.