This is a script I call "certdays.sh" which you can call from your regular tests like this:

certdays.sh somedomain.com 14

If the certificate for somedomain.com is valid less then 14 days, it will fail:

https://github.com/no-gravity/certdays

There must be some kind of law "Every company will forget to renew a TLS certificate once"

I know I can't throw stones in this particular greenhouse :)

I remember a couple of years ago I was on the top of some old volcano on an island, and I was dictating shell commands to a colleague so that we can quickly fix our expired certificate. Good old days.

Maybe browsers should put up a warning when a certificate is about to expire; say two weeks away. Nobody should let their certificate get that close to expiring, but if it does, you'd rather it generate a lot of visible warnings before simply ceasing to work at all.

Just came to Hacker News to post this, GitHub's assets don't load and the site's front end is broken.

Don't see any error. The certificate was renewed after 10 minutes of issue?

Validity Not Before 11/2/2020, 12:00:00 AM (Greenwich Mean Time)

Validity Not After 11/9/2021, 11:59:59 PM (Greenwich Mean Time)

That's why they are serving un-styled pages, I guess. I thought my browser was acting up.

if you're using nagios, setup something like

  command_name  check_certificate
  command_line  $USER1$/check_http -H $ARG1$ -p $ARG2$ -4 -S -C 21 -t 20 --sni

Update: Seems to be fixed now.

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Just ran into the same issue... Most/Everything still seems to work though, because only the assets are missing ^^ However it is not pretty.

Not known on https://www.githubstatus.com/ yet.

Once identified, I would expect their "Incident Report" in some way would mention the root cause of the incident. However, that does not seem to be the case here: https://www.githubstatus.com/incidents/4mzhxxpwgvqg

Maybe someone could get fired for this or does it have more to do with Microsoft's stock/public image?

This is a wonderful example of what can happen when you don't keep track of your cert expiry dates.

Certs are such a pain in the ass.

I thought it was just a local CDN node issue until I see this on Hacker News :-(

Seems like microsoft has a real issue tracking their cert expiry lately

Github not working for me either

github.githubassets.com expired 1 day ago github.com is OK now