Customers are calling: 'Your site has a red warning, is it a virus?' I checked, and the browser says 'SSL certificate invalid site not secure.' I was scared it was a hack, but the IT manager said 'the certificate expired.' Which one is it actually?
What does SSL certificate mean? How is it different from HTTPS? I'm currently using a 'Let's Encrypt' certificate. What is this thing? Should I switch to a paid cert? Are all certs the same?
is certificate renewal automatic? doesn't my hosting company provide support? we got an expiring soon warning but nobody notified us. how do i set up alerts?