About the server:

- It's certificate is valid for 2 years, and Apple has started to
rejecting any servers for which certificate is valid for more than 13
months.

- It has a SHA1withRSA certificate in its chain, which will be rejected
by all clients soon.

- It supports many weak TLSv1.2 ciphersuites

- It is susceptible to OpenSSL 0-Length attack

Please contact the administrators of said website to secure it
immediately & acquire certificate with shorter timespan and no SHA1
signatures.

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https://bugs.launchpad.net/bugs/1864689

Title:
  openssl in 20.04 can't connect to site that was fine in 19.10 and is
  fine in Chrome and Firefox

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