[$] A DNS flag day

A flag day for DNS is coming onFebruary 1; it may have escaped notice even though it has beenplanned for nearlya year. Some DNSservers will simply be marked as "dead" by much of the rest of the interneton or after that day, which means that domain owners need to ensure theirDNS records will still be available after that point. A longstandingworkaround for non-compliant servers will be dropped-mostly for better performancebut also in support of DNS extensions, some of which can help alleviatesecurity problems.