Starting on DNS Flag Day 2019, DNS and service providers will stop supporting specific customizations for non-compliant DNS implementations from their software or services. These changes are coming to DNS systems that are not fully compliant with EDNS standards.
According to the site , “The current DNS is unnecessarily slow and inefficient, due to efforts to accommodate a few DNS systems that do not conform to standards created two decades ago.”
DNS Flag Day is set for February 1, 2019. To remediate non-compliant systems, DNS service providers are ending some customizations. A number of leading companies have agreed to support this initiative. These companies include Facebook, Google, Cisco, Cloudflare, Internet Consortium Systems (ISC), NLnet Labs, CZ.NIC, Quad9, PowerDNS, and CleanBrowsing.
Domain names served by non-compliant DNS servers will be affected by this change. The goal of DNS server compliance is to increase the efficiency of DNS operations and enable operators to develop new features, such as new DDoS protection mechanisms.
According to the ISC, “Domains served by non-compliant DNS servers will not function reliably when contacted by resolvers that have been updated to the new version and may not be available through these updated resolvers.
“If your company’s DNS zones are served by non-compliant servers, your online presence will degrade or disappear as ISPs and other organizations update their resolvers. When you update your own internal DNS resolvers to non-compliant versions, some websites and email servers may become unreachable.”
Website owners can check their domains hereto see if they are ready for the planned change. The test results will indicate whether users need to take further steps or not. If the domain name is ready for the changes, a green “All Ok!” will appear. Otherwise, users will receive recommendations on any further steps that need to be taken.
