In the SSL server test, our certificate is rated A. There are no problems just the indication that you could still make DNS entries or some cipher suites are WEAK.
When I access our page arivis.com with a recent MacOS and Chrome, I get the message "Not secure". If I look at the details of the certificate, I get the message in green "Certificate valid". As a result, I can not visit the site.
In Safari, this behavior is the other way round: I can visit the site, it is considered secure. If I look at the certificate details, there is "Certificate invalid". Interestingly, the intermediate certificate delivered by the server is also classified as invalid.
What is the cause of this behavior?