For some reason, on Windows 10 and my network connection, the browser sometimes takes a very long time to resolve pijul.org. I tried nslookup in cmd which also gave this:
Non-authoritative answer: DNS request timed out. timeout was 2 seconds. Name: pijul.org Address: 220.127.116.11
The timeout only occurs with pijul.org. All other domains work normally, no matter if they’re IPv6 or IPv4.