Everything you need to know about renewing your SSL Certificate
Unlike Twinkies and Styrofoam, SSL Certificates do not last forever. They have lifespans of 1-3 years, which means they’ll need to be renewed if you want to keep your website protected following their expiration.
The good news is this is a very simple process.
To renew your SSL certificate, simply re-purchase it from the SSL Provider you originally bought it from. Now, and this is important, you're going to want to renew the certificate before the validity period actually expires. The reasons for this are two-fold.
First, you don't want your protection to lapse. That would leave your website insecure and that's going to end up costing you money. Not to mention, it can take a few days to issue the certificate so you may be without protection for as long as a week.
Second, if you renew before the certificate expires, the issuing Certificate Authority (CA) can roll over the majority of the previous validated information - depending on the certificate type – as long as the business information remains the same. You may just have to deal with a few requirements instead of the entire process.
If you renew after the certificate has expired though, you're really not renewing at all, you're purchasing a new one and the CA is going to make you go through every step of the validation process again.
And don't worry about losing time off your original certificate, that rolls over too—up to three months. So if you renew for an additional year with two and a half months left on your original certificate's lifespan, you're actually getting a renewal certificate that is good for the next 14 and a half months—instead of just 12.
Now, the last thing to remember is that your job is not done simply because you renewed your certificate. The CA still has to issue you a new certificate and you still have to install it. Don't make the mistake of thinking the job is done just because you purchased a renewal—that will leave you without protection when your old certificate expires. Remember to install your renewal certificate and you'll be good to go!