Handshake_failure

Help
,
1

I’m experiencing issues where some users visiting my website receive a “Your connection is not private” warning. The error suggests that attackers might be trying to steal information from my domain (e.g., passwords, messages, credit cards). This issue seems to occur with older browsers and devices, such as:

  • IE 11 / Windows Phone 8.1: Server sent fatal alert: handshake_failure
  • Safari 6 / iOS 6.0.1: Server sent fatal alert: handshake_failure
  • Safari 7 / iOS 7.1: Server sent fatal alert: handshake_failure
  • Safari 7 / OS X 10.9: Server sent fatal alert: handshake_failure
  • Safari 8 / iOS 8.4: Server sent fatal alert: handshake_failure
  • Safari 8 / OS X 10.10: Server sent fatal alert: handshake_failure
    Questions:
  1. Is this issue caused by my hosting provider (Vercel) or something in my website’s code?
  2. What steps can I take to ensure these older browsers and devices don’t encounter this problem?
  3. How can I prevent the “Your connection is not private” warning for all users?

Thank you in advance!

2

Hi, @yehorvoronov!

The “Your connection is not private” warning and the specific error messages you’re encountering, such as handshake_failure, are related to SSL/TLS (Secure Sockets Layer/Transport Layer Security) configurations on your server. These issues typically arise when there is a mismatch between the TLS protocols and cipher suites supported by your server and those supported by the older browsers and devices.

Is your DNS with Vercel?

Sharing some related documentation that might be helpful:

3

Thank you Pawlean, I will take a look, I appreciate your support!

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