Confusion about certification expiry notice


#1

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. https://crt.sh/?q=example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: https://www.magneticmemorymethod.com

I first received an email from Let’s Encrypt late last month about my certification expiring. The person who helps with my site used it.

We tried to figure out with SiteGround’s desk support if there was a problem and SG said that everything is fine.

I received another email today which reads in part:

Hello,

Your certificate (or certificates) for the names listed below will expire in
1 days (on 17 Mar 18 05:14 +0000). Please make sure to renew
your certificate before then, or visitors to your website will encounter errors.

magneticmemorymethod.com
www.magneticmemorymethod.com

I’m concerned by this given that I don’t fully understand this field and there’s a discrepancy between SiteGround hosting and the issuance of this warning.

How do I know for certain that everything is okay with my site and my user’s will not encounter errors?

Thanks kindly for any help and insight.


#2

As the email said:

For details about when we send these emails, please visit https://letsencrypt.org/docs/expiration-emails/. In particular, note that this reminder email is still sent if you’ve obtained a slightly different certificate by adding or removing names. If you’ve replaced this certificate with a newer one that covers more or fewer names than the list above, you may be able to ignore this message.

The certificate seems to have been replaced with this slightly different one, issued two weeks ago:

https://crt.sh/?id=343446486

https://magneticmemorymethod.com/ is using the new certificate, and https://www.magneticmemorymethod.com/ is using Cloudflare.

It seems that everything is okay, and you can ignore the emails about the old certificate expiring.

If the expiring certificate is being used on a different server or something, then everything is not okay, but there’s no way for someone on the outside to know. If you’re not using the certificate for something, and SiteGround says everything is fine, everything probably is fine.


#3

Thanks mnordhoff. I appreciate the response.

Unfortunately, I found that link confusing, but that’s because this world is generally outside my frame of understanding. The Cloudflare issue is confusing to me as is the whole issue of having a non www and a //url configuration.

I’m looking to learn more about this, especially since learning and memory are my core interests.

If someone wanted to find a mentor/teacher in this area to help bring someone up to speed, do you have any suggestions? Maybe I’m just getting older, but I find Google harder and harder to use just to find websites that can lay out the basics of computer science relative to concerns like these.

Thanks again.


#4

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