It just doesn't have an entry for www.globalentry.gov. This works:<p><a href="https://globalentry.gov/" rel="nofollow">https://globalentry.gov/</a><p>It's just a redirect to a page on CBP. Slow news day for this to make the front page of HN.
globalentry.gov has a valid certificate. The link you shared is for www.globalentry.gov. Presumably, the admins there shouldn't simply be pointing www.globalentry.gov at the same IP as globalentry.gov.
This is just my opportunity to say: it's a travesty everybody doesn't get the Global Entry / TSA Pre Experience. It's so much better and I hate that you have to pay for it.