This is not about Apple or Github. All simple - roskomnadzor blocked the digicert verification service ocsp.digicert.com . I believe that you are from Russia, why you came across this issue.
There are several ways to solve this problem:
- Use Chrome / Firefox / Any that you want.
- Rotate SSL Validation in Safari
- Update your
/etc/hosts following line: 72.21.91.29 ocsp.digicert.com
I choose the last one. Now all the working punches are beautiful.
Here you can find the details here and here. Only links in Russian.
source share