@kims @anguinea I checked and the passport renewal page is back online.
If you reach a government web page that is down don’t panic. I had trouble this morning with ssa . gov but then tried another device and browser and it worked. Restarting the browser didn't help.
If that doesn't work switch the DNS you are using.
Still doesn't work ask others their experience. In today's environment do say you are worried that it was taken down. Then share what others have told you.