How to fix the SSL handshake failed error code 525

In an ideal world, once you install an SSL certificate, you should be able to forget about it, safe in the knowledge that your site will remain secured until it’s time to renew. Unfortunately, this isn’t always the case. Even when there’s nothing wrong with the SSL itself, there are myriad technical server-side or browser issues that can cause it not to work properly, resulting in error messages for people trying to reach your site. 

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The problem with certificate pinning

SSL encryption is among the most foolproof ways to secure your site, but what if you could strengthen it even further? A few years back, certificate pinning was a practice often used to enhance the security of an SSL security. People believed it helped mitigate the risks of cyber threats like man-in-the-middle attacks and certificate misissuance, making it more difficult for hackers to use SSL certificates in their attacks. 

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