We changed DNS servers last night. Other than stale caches affecting the resolving of our new FAQ FQDN, it was a transparent transition.
If you can’t resolve faq.pfsense.org/com/net, flush your DNS server’s cache. If you don’t control your DNS server, you’ll just have to wait until the cached entries expire.
The new NS records are park17.secureserver.net and park18.secureserver.net.