[Reason077]

In /etc/hosts:

  0.0.0.0 ocsp.apple.com

then:

  sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder # refresh hosts

Or alternatively:

  defaults write /Library/Preferences/com.apple.security.revocation.plist CRLStyle None
  defaults write /Library/Preferences/com.apple.security.revocation.plist OCSPStyle None
  defaults write com.apple.security.revocation.plist CRLStyle None
  defaults write com.apple.security.revocation.plist OCSPStyle None

[zerocrates]

Disabling OCSP (I believe you have a typo in your hosts file suggestion, by the way) presumably doesn't actually disable notarization, just the OCSP (checking for revoked certificates) part of that process.

[Reason077]

Yes, thanks. Edited to fix.